4.2 Ads Campaign Creation

Introduction

---

Once you have successfully finished the previous steps, you can enable your merchants to create Performance Max Retail campaigns and use machine learning to make the smartest decision for serving each ad.

To understand what advertisers have to do manually in the Google Ads UI to create a Performance Max campaign, see Create a Performance Max campaign. This section describes how you can use the Google Ads API to enable your advertisers to create Performance Max campaigns serving Shopping Ads.

Note: if you opted for the redirect option, no API integration is required for campaign creation.

Only basic campaign functionalities that deliver the most value to your merchants while minimizing implementation complexity are covered in this section. For each campaign, we recommend that provide the following three customization options to your merchants:

• Campaign name: How the campaign is displayed in reporting.

• Budget: How much the campaign should spend on average.

• Geo-targeting: Where the campaign should serve ads.

Geo-targeting Notes:

• This functionality is recommended but optional in case you want to further reduce integration complexity. It is not available in the redirect option.
• If this field is omitted, the products serve in all eligible countries. If a product is not eligible to serve in a given country (for example, does not meet Shipping requirements), it is excluded from the campaign automatically, without any action required.

Additionally, in the backend you need to specify a few more parameters, listed below.

Bid strategy

The automated bid strategy defines what the campaign maximizes for when setting bids. For Performance Max, two bid strategies are available:

• Maximize conversions: the campaign tries to maximize the number of conversions achieved (for example, number of purchases) for the given budget.

• Maximize conversion value (recommended): the campaign tries to maximize the total monetary value of conversions (for example, dollars spent on purchases) for the given budget, as you defined it as part of the conversion tracking setup.

To simplify the technical complexity and the experience for merchants, we recommend that you select the "Maximize conversion value" on behalf of your merchants, without target ROAS. This is consistent with what is available through the redirect option.

Asset groups and listing groups

Asset groups are where the creative elements from the campaign are stored, such as products, images, videos. In the foundational pillar, only products from Merchant Center are covered. Therefore, you only need a single asset group per campaign, which you can create in the backend on behalf of the merchant.

Listing groups allows merchants to subdivide products in a campaign into groups (for example, to only advertise specific products). This is an advanced feature not recommended in the foundational pillar, but every campaign must have at least one listing group. Therefore, you only need a single listing group per campaign, which you can create in the backend on behalf of the merchant.

Note: Asset Group replaces what is called an Ad Group in other campaign types (for example, Shopping campaigns). And a Listing Group replaces what is called a Product Group in Smart Shopping Campaigns.

UX Guidance

---

The first part of this section discusses the scenario of creating the first campaign as part of the Google Ads onboarding flow. The second part describes how additional campaigns may be created. This is particularly relevant if you allow merchants to geo-target their campaigns.

Campaign creation during Google Ads onboarding

After connecting the Google Ads account, the user is prompted to set up a Performance Max campaign:

• The campaign name can be pre-populated with a meaningful name, for example, Performance Max campaign for your storebuilder name.

• We also recommend including a preview of what an ad might look like and a brief explanation of how Performance Max campaigns work. The Google Ads API doesn't offer a way to generate an ad preview, so you would have to implement one yourself. There is no need to make it pixel perfect, as the design of the ad type might change.

• If the merchant is eligible for a coupon, it should be mentioned in the prompt.

• Be sure to also provide a link to the Shopping Ads policies at this point of the flow.

• Optionally, you can allow the merchant to geo-target the campaign.

Tip: It is best to only include available target countries in the merchant's Merchant Center product feeds.

Two scenarios are possible when the merchant arrives at the campaign setup step:

1. Billing is not set up. This is always the case when a new Google Ads account has been created as part of this flow.

2. Billing is already set up for the connected Google Ad account (for example, the merchant reused a Google Ads account which they had already used to run other types of campaigns).

Broken billing scenarios should have already been caught at the Google Ads account linking step. The only difference between scenario 1 and 2 is the behavior and call-to-action (CTA) of the primary action:

• For Scenario 1, the CTA should be called 'set up billing' and open the billing pop-up. Once the billing has been provided and the pop-up is closed proceed to the 'review and finish setup' step.

• For scenario 2, the CTA should be called 'continue' and directly proceed to the 'review and finish setup' step.

Below is an example for how the campaign setup step may look for scenario 1.

Additional information should be provided to the merchant on campaign name, products included and budget. An example of how this might look is below.

If the merchant enters a budget below the recommended threshold for the country they advertise in, provide a notification with a minimum budget recommendation. A suggestion of how this might look is below.

After completing the campaign setup step and providing billing information (if necessary), the user proceeds to the "review and finish" step. The user is given the opportunity to review their campaign setup one last time before launching the campaign. The UI might look something like this in this step:

After exiting the onboarding flow, we recommend presenting a preview to the user about what happens next. An example is shown below.

After exiting the onboarding, the merchant should be directed to an overview page. An example of how this might look is below.

Display campaigns and create additional campaigns

Your UI should be able to display multiple campaigns, as merchants may have existing Performance Max campaigns or want to create more than one campaign, especially if you allow them to geo-target. An example of allowing a merchant to geo-target their campaigns is shown below. Always ensure that the geo-targeting is narrower than the country or countries where the merchant advertises.

When a merchant has more than one campaign, aggregate the advertising metrics on the overview page. An example of how this might look is below.

List the individual campaigns in Google Ads details view. An example of how this might look is below.

The Google Ads details view is also the suggested starting point for creating additional campaigns. An example for how this flow may look is shown in the animation below. Note that the animation skips filling in the budget information as this part is covered earlier in this guide.

Tech Guidance

---

Once you have the Google Ads account linked to the Merchant Center account, you can create the Performance Max for Retail campaign using these steps:

1. Create budget operation
2. Create campaign operation
3. Create campaign criteria
4. Create asset group with listing group filter
5. Override conversion goals
6. Send all operations together

Note that the following applies for managing Performance Max campaigns:

• You need to be using at least version 9 of the Google Ads API

• You must send all mutate operations in one single mutate request. Therefore, you first need to create all mutate operations and then send them all together in a single mutate request to the Google Ads API.

• You use temporary IDs on all the operations you create because you send a single mutate request with all the operations, and those operations use those temporary IDs to let Google know that they all belong together.

Set name

If there is a chance that your merchants access the Google Ads platform directly, you may want to be more thoughtful about the campaign name so that it's clear that you, the partner, programmatically created the campaign. This would signal to the merchant that it's best to make edits to the campaign from within your platform and not the Google Ads platform. For example, even if you allow the merchant to customize the name, you may want to prepend or append "Created by platform X".

Tip: Conduct checks to mitigate the risk of fundamental Merchant Center and Ads issues. This helps set the merchant up for success. See section 4.5 Error Handling.

Step 1. Create the budget operation

The code sample can be found in Create a campaign budget, so here we only highlight the most important points:

• A Performance Max campaign requires a budget, like all other campaigns, but with the following restrictions:

  • The budget must have a DAILY budget period.
  • The budget cannot be shared.

• The delivery method for the budget is Standard. Standard delivery takes into account expected ad performance throughout the day and is better at maximizing performance within your average daily budget.

• As mentioned earlier in this section, you need to use temporary IDs on all the operations you create. Hence, you see in the code sample that a _BUDGET_TEMPORARY_ID is set in the budget's resource name so it can be referenced by the campaign in later steps.

Step 2. Create the campaign and bidding strategy

You can refer to the code sample in Create the campaign and bidding strategy to learn how to create a standard Performance Max campaign. Here are some additional notes:

• The code sample uses Maximize Conversion Value for the bidding strategy, which is what we recommend you use in the Foundation pillar. With Maximize Conversion Value, you have the option of specifying a target ROAS (Return on Advertising Spend). Even if you choose not to specify a target ROAS value, you have to set it, unless you are using Java. In Java, you have: setMaximizeConversionValue(MaximizeConversionValue.newBuilder().build())

• For future versions, you can consider using Maximize Conversions as another bidding strategy option, with the ability to set a target CPA.

• URL expansion is to allow the campaign to target the entire domain, not just the URLs specified in the advertiser's Merchant Center. We recommend that you use final URL expansion, so that the campaign is not limited in reach and ultimately performance. Note that this does mean that ads may be served to any page on the merchant's web site.

• start_date and end_date are optional.

For a Performance Max for Retail campaign, you also have to create a ShoppingSetting with the following fields, and add it to the campaign. This specifies which Merchant Center account you want to use, along with which product feed you want to use in that account. As described in Create a Performance Max retail campaign, you need to set these ShoppingSetting fields:

• merchant_id (required): the Merchant Center ID of the account that contains the products to advertise.

• feed_label (may be required): if there is a chance that you have a merchant using an existing Merchant Center account with old product feeds, you should use feed_label to specify that you want the campaign to use the product feed that you created; this maps to DatafeedTarget in the Content API.

Here is a sample of what the operation for creating a Performance Max for Retail campaign and bidding strategy would look like. This assumes that there is only one product feed in the Merchant Center account (that is, the one you manage), so it does not set the feed_label.

Python
mutate_operation = googleads_client.get_type("MutateOperation")
campaign = mutate_operation.campaign_operation.create
campaign.name = f"Performance Max campaign #{uuid4()}"

campaign.status = googleads_client.enums.CampaignStatusEnum.ENABLED

campaign.advertising_channel_type = (       googleads_client.enums.AdvertisingChannelTypeEnum.PERFORMANCE_MAX
)

# Add Merchant Center ID to create a Performance Max for Retail
# campaign. This ID should be linked to the Ads account
# where you are creating the campaign
campaign.shopping_setting.merchant_id = int(google_merchant_id)
campaign.maximize_conversion_value.target_roas = None

# Set the Final URL expansion opt out. This option is specific to
# Performance Max campaigns. If opted out (True), only the
# final URLs in the asset group or URLs specified in the
# advertiser's Google Merchant Center or business data feeds are
# targeted.
# If opted in (False), the entire domain will be targeted.
# For best results, set this value to false to opt in and allow
# URL expansions. You can optionally add exclusions to limit
# traffic to parts of your website.
campaign.url_expansion_opt_out = False

# Assign the resource name with a temporary ID.
campaign_service = googleads_client.get_service("CampaignService")
campaign.resource_name = campaign_service.campaign_path(
       customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
)

# Set the budget using the given budget resource name.
campaign.campaign_budget = campaign_service.campaign_budget_path(
      customer_id, _BUDGET_TEMPORARY_ID
)

print("mutate_operation for step 2 - campaign and bidding strategy creation")
print(mutate_operation)

return mutate_operation

Step 3. Create the campaign criteria

You can see the code sample in Create the campaign criteria, so here are the most important points:

• As the code sample shows, you must first start all of the services you need before proceeding to configure the campaign criteria LOCATION and LANGUAGE.

• When setting the LOCATION campaign criteria, you can add negative targets for locations you want to exclude by setting up the campaign_criterion.negative to True.

• Make sure to use the same temporary ID from step 2 to tell Google for which campaign you are creating this criteria.

Step 4. Create the asset group with listing group filter

As described in Creating Performance Max Asset Groups, an asset group is a collection of assets centered on a theme or related to a target audience. The asset group is used to assemble all of your ads and build an inventory for all applicable ad formats for your advertising objective.

You can use Shopping listing groups to partition products into groups to include a set of products or to exclude them. It lets you filter the set of products that are eligible for display in the campaign.

You can see the code sample for creating multiple product listing groups in Performance Max listing groups, but for the Foundation pillar, it is recommended that you set up a single campaign that targets all of a merchant's products. Hence, a simpler code sample is included below. You must include a root AssetGroupListingGroupFilter node containing all products. Otherwise, the ads don't serve.

Python
googleads_service = googleads_client.get_service("GoogleAdsService")

operations = []

# Create the AssetGroup
mutate_operation = googleads_client.get_type("MutateOperation")
asset_group = mutate_operation.asset_group_operation.create
asset_group.name = f"Performance Max asset group #{uuid4()}"
asset_group.campaign = googleads_service.campaign_path(
       customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
)

asset_group.status = googleads_client.enums.AssetGroupStatusEnum.ENABLED
asset_group.resource_name = googleads_service.asset_group_path(
      customer_id,
      _ASSET_GROUP_TEMPORARY_ID,
)
operations.append(mutate_operation)

# Create a listing group and link it to the AssetGroup.
# The way you link a listing group to an AssetGroup is different
# than when you are linking headlines, descriptions, images, etc
# where you set the field_type of the asset_group_asset as HEADLINE, for example.
# https://developers.google.com/google-ads/api/reference/rpc/v13/AssetGroupListingGroupFilter
mutate_operation = googleads_client.get_type("MutateOperation")
asset_group_listing_group = mutate_operation.asset_group_listing_group_filter_operation.create
asset_group_listing_group.asset_group = googleads_service.asset_group_path(
       customer_id,
       _ASSET_GROUP_TEMPORARY_ID,
)

asset_group_listing_group.type_ = googleads_client.enums.ListingGroupFilterTypeEnum.UNIT_INCLUDED
# here are other options for ListingGroupFilterTypeEnum
# https://developers.google.com/google-ads/api/reference/rpc/v13/ListingGroupFilterTypeEnum.ListingGroupFilterType

asset_group_listing_group.vertical = googleads_client.enums.ListingGroupFilterVerticalEnum.SHOPPING

operations.append(mutate_operation)

print("mutate_operation for step 4 - create asset group and product group attached to that asset group")
print(operations)

return operations

You can add headlines, descriptions, and even images to the asset group to improve campaign performance. However, since this is not a requirement for Performance Max for Retail, we don't recommend it for the Foundational pillar.

Step 5. Overwrite conversion goals

As stated in the Conversion Tracking section, if you allow merchants to use an existing Google Ads account, we strongly advise that you set conversion goals at the campaign level. This can be done by overriding the conversion goals at the customer or account level. When no campaign-level conversion goal is set, the campaign defaults to the customer-level conversion goal.

A code sample can be found in Update Campaign Conversion Goals. First, you must obtain the account's conversion goals. You can then iterate through the conversion goals and check if each goal is for driving online sales (that is, category PURCHASE, origin WEBSITE). If it is not, set biddability to False. If it is, set biddability to True. This ensures that the Performance Max campaign is optimized to increase online sales.

Step 6. Send all mutate operations together

Finally, you must send all mutate operations together. As shown in the code sample below, the order of operations is important, because they depend on each other. For example, performance_max_campaign_operation uses data from campaign_budget_operation, and campaign_criterion_operations use data from performance_max_campaign_operation.

Python
ga_service = googleads_client.get_service("GoogleAdsService")
response = ga_service.mutate(
   customer_id=customer_id,
   mutate_operations=[
       # It's important to create the entities in this order
       # because they depend on each other
       campaign_budget_operation,       # Step 1
       performance_max_campaign_operation,  # Step 2
       # Expand the list of multiple operations into the list of
       # other mutate operations
       *campaign_criterion_operations,  # Step 3
       *asset_group_operations,             # Step 4
       *conversion_goal_operations,         # Step 5
   ],
)

After the campaign is created successfully, the API returns something like this:

Python
mutate_operation_responses {
campaign_budget_result {
resource_name: "customers/7244690427/campaignBudgets/10689184019"
}
}
mutate_operation_responses {
campaign_result {
    resource_name: "customers/7244690427/campaigns/16822128600"
}
}
mutate_operation_responses {
campaign_criterion_result {
        resource_name: "customers/7244690427/campaignCriteria/16822128600~20009"
}
}
mutate_operation_responses {
    campaign_criterion_result {
resource_name: "customers/7244690427/campaignCriteria/16822128600~20024"
    }
}
mutate_operation_responses {
campaign_criterion_result {
        resource_name: "customers/7244690427/campaignCriteria/16822128600~1003"
    }
}
mutate_operation_responses {
asset_group_result {
        resource_name: "customers/7244690427/assetGroups/6444254998"
    }
}
mutate_operation_responses {
asset_group_listing_group_filter_result {
    resource_name: "customers/7244690427/assetGroupListingGroupFilters/6444254998~6454725458"
}
}
mutate_operation_responses {
campaign_conversion_goal_result {
    resource_name: "customers/7244690427/campaignConversionGoals/16822128600~PURCHASE~WEBSITE"
}
}

Save the resource_name of the campaign and budget because you need them when editing the campaign settings and for reporting purposes.

Putting it all together: You can find comprehensive code samples of creating a Performance Max for Retail campaign in the Code Samples section of the Ads API documentation. Note that these samples may include instructions to implement features beyond what is recommended in the Foundational pillar, including adding additional headline and image assets.

Java

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.ads.googleads.examples.shoppingads;

import static com.google.ads.googleads.examples.utils.CodeSampleHelper.getPrintableDateTime;

import com.beust.jcommander.Parameter;
import com.google.ads.googleads.examples.utils.ArgumentNames;
import com.google.ads.googleads.examples.utils.CodeSampleParams;
import com.google.ads.googleads.lib.GoogleAdsClient;
import com.google.ads.googleads.lib.utils.FieldMasks;
import com.google.ads.googleads.v18.common.ImageAsset;
import com.google.ads.googleads.v18.common.LanguageInfo;
import com.google.ads.googleads.v18.common.LocationInfo;
import com.google.ads.googleads.v18.common.MaximizeConversionValue;
import com.google.ads.googleads.v18.common.TextAsset;
import com.google.ads.googleads.v18.enums.AdvertisingChannelTypeEnum.AdvertisingChannelType;
import com.google.ads.googleads.v18.enums.AssetFieldTypeEnum.AssetFieldType;
import com.google.ads.googleads.v18.enums.AssetGroupStatusEnum.AssetGroupStatus;
import com.google.ads.googleads.v18.enums.BudgetDeliveryMethodEnum.BudgetDeliveryMethod;
import com.google.ads.googleads.v18.enums.CampaignStatusEnum.CampaignStatus;
import com.google.ads.googleads.v18.enums.ConversionActionCategoryEnum.ConversionActionCategory;
import com.google.ads.googleads.v18.enums.ConversionOriginEnum.ConversionOrigin;
import com.google.ads.googleads.v18.enums.ListingGroupFilterListingSourceEnum.ListingGroupFilterListingSource;
import com.google.ads.googleads.v18.enums.ListingGroupFilterTypeEnum.ListingGroupFilterType;
import com.google.ads.googleads.v18.errors.GoogleAdsError;
import com.google.ads.googleads.v18.errors.GoogleAdsException;
import com.google.ads.googleads.v18.resources.Asset;
import com.google.ads.googleads.v18.resources.AssetGroup;
import com.google.ads.googleads.v18.resources.AssetGroupAsset;
import com.google.ads.googleads.v18.resources.AssetGroupListingGroupFilter;
import com.google.ads.googleads.v18.resources.Campaign;
import com.google.ads.googleads.v18.resources.Campaign.ShoppingSetting;
import com.google.ads.googleads.v18.resources.CampaignBudget;
import com.google.ads.googleads.v18.resources.CampaignConversionGoal;
import com.google.ads.googleads.v18.resources.CampaignCriterion;
import com.google.ads.googleads.v18.resources.CustomerConversionGoal;
import com.google.ads.googleads.v18.services.AssetGroupAssetOperation;
import com.google.ads.googleads.v18.services.AssetGroupListingGroupFilterOperation;
import com.google.ads.googleads.v18.services.AssetGroupOperation;
import com.google.ads.googleads.v18.services.AssetOperation;
import com.google.ads.googleads.v18.services.CampaignBudgetOperation;
import com.google.ads.googleads.v18.services.CampaignConversionGoalOperation;
import com.google.ads.googleads.v18.services.CampaignCriterionOperation;
import com.google.ads.googleads.v18.services.CampaignOperation;
import com.google.ads.googleads.v18.services.GoogleAdsRow;
import com.google.ads.googleads.v18.services.GoogleAdsServiceClient;
import com.google.ads.googleads.v18.services.GoogleAdsServiceClient.SearchPagedResponse;
import com.google.ads.googleads.v18.services.MutateGoogleAdsResponse;
import com.google.ads.googleads.v18.services.MutateOperation;
import com.google.ads.googleads.v18.services.MutateOperationResponse;
import com.google.ads.googleads.v18.utils.ResourceNames;
import com.google.common.collect.ImmutableList;
import com.google.common.io.ByteStreams;
import com.google.protobuf.ByteString;
import com.google.protobuf.Descriptors.FieldDescriptor;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Collectors;
import org.joda.time.DateTime;

/**
 * This example shows how to create a Performance Max retail campaign.
 *
 * <p>This will be created for "All products".
 *
 * <p>For more information about Performance Max retail campaigns, see
 * https://developers.google.com/google-ads/api/docs/performance-max/retail
 *
 * <p>Prerequisites: - You need to have access to a Merchant Center account. You can find
 * instructions to create a Merchant Center account here:
 * https://support.google.com/merchants/answer/188924. This account must be linked to your Google
 * Ads account. The integration instructions can be found at:
 * https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center - You need your
 * Google Ads account to track conversions. The different ways to track conversions can be found
 * here: https://support.google.com/google-ads/answer/1722054. - You must have at least one
 * conversion action in the account. For more about conversion actions, see
 * https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions
 */
public class AddPerformanceMaxRetailCampaign {

  // We specify temporary IDs that are specific to a single mutate request. Temporary IDs are always
  // negative and unique within one mutate request.
  //
  // <p>See https://developers.google.com/google-ads/api/docs/mutating/best-practices for further
  // details.
  //
  // <p>These temporary IDs are fixed because they are used in multiple places.
  private static final int BUDGET_TEMPORARY_ID = -1;
  private static final int PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID = -2;
  private static final int ASSET_GROUP_TEMPORARY_ID = -3;

  // There are also entities that will be created in the same request but do not
  // need to be fixed temporary IDs because they are referenced only once.
  private static long temporaryId = ASSET_GROUP_TEMPORARY_ID - 1;

  private static class AddPerformanceMaxRetailCampaignParams extends CodeSampleParams {

    @Parameter(names = ArgumentNames.CUSTOMER_ID, required = true)
    private Long customerId;

    @Parameter(
        names = ArgumentNames.MERCHANT_CENTER_ACCOUNT_ID,
        required = true,
        description = "The Merchant Center account ID.")
    private long merchantCenterAccountId;

    @Parameter(
        names = ArgumentNames.SALES_COUNTRY,
        description = "The sales country of products to include in the campaign.")
    private String salesCountry = "US";

    @Parameter(
        names = ArgumentNames.FINAL_URL,
        required = true,
        description =
            "The final url for the generated ads. Must have the same domain as the Merchant Center"
                + " account.")
    private String finalUrl;
  }

  public static void main(String[] args) throws IOException {
    AddPerformanceMaxRetailCampaignParams params = new AddPerformanceMaxRetailCampaignParams();
    if (!params.parseArguments(args)) {

      // Either pass the required parameters for this example on the command line, or insert them
      // into the code here. See the parameter class definition above for descriptions.
      params.customerId = Long.parseLong("INSERT_CUSTOMER_ID_HERE");
      params.merchantCenterAccountId = Long.parseLong("INSERT_MERCHANT_CENTER_ACCOUNT_ID_HERE");
      params.finalUrl = "INSERT_FINAL_URL_HERE";

      // Optionally set the sales country.
      // params.salesCountry = "INSERT_SALES_COUNTRY_HERE";
    }

    GoogleAdsClient googleAdsClient = null;
    try {
      googleAdsClient = GoogleAdsClient.newBuilder().fromPropertiesFile().build();
    } catch (FileNotFoundException fnfe) {
      System.err.printf(
          "Failed to load GoogleAdsClient configuration from file. Exception: %s%n", fnfe);
      System.exit(1);
    } catch (IOException ioe) {
      System.err.printf("Failed to create GoogleAdsClient. Exception: %s%n", ioe);
      System.exit(1);
    }

    try {
      new AddPerformanceMaxRetailCampaign()
          .runExample(
              googleAdsClient,
              params.customerId,
              params.merchantCenterAccountId,
              params.salesCountry,
              params.finalUrl);
    } catch (GoogleAdsException gae) {
      // GoogleAdsException is the base class for most exceptions thrown by an API request.
      // Instances of this exception have a message and a GoogleAdsFailure that contains a
      // collection of GoogleAdsErrors that indicate the underlying causes of the
      // GoogleAdsException.
      System.err.printf(
          "Request ID %s failed due to GoogleAdsException. Underlying errors:%n",
          gae.getRequestId());
      int i = 0;
      for (GoogleAdsError googleAdsError : gae.getGoogleAdsFailure().getErrorsList()) {
        System.err.printf("  Error %d: %s%n", i++, googleAdsError);
      }
      System.exit(1);
    }
  }

  /**
   * Runs the example.
   *
   * @param googleAdsClient the Google Ads API client.
   * @param customerId the client customer ID.
   * @param merchantCenterAccountId the Merchant Center account ID.
   * @param salesCountry sales country of products to include in the campaign.
   * @param finalUrl final URL for the asset group of the campaign.
   */
  private void runExample(
      GoogleAdsClient googleAdsClient,
      long customerId,
      long merchantCenterAccountId,
      String salesCountry,
      String finalUrl)
      throws IOException {
    // This campaign will override the customer conversion goals. For more information see
    // https://developers.google.com/google-ads/api/docs/conversions/goals/campaign-goals.
    // Retrieve the current list of customer conversion goals.
    List<CustomerConversionGoal> customerConversionGoals =
        getCustomerConversionGoals(googleAdsClient, customerId);

    // Performance Max campaigns require that repeated assets such as headlines
    // and descriptions be created before the campaign.
    // For the list of required assets for a Performance Max campaign, see
    // https://developers.google.com/google-ads/api/docs/performance-max/assets
    //
    // Creates the headlines.
    List<String> headlines = ImmutableList.of("Travel", "Travel Reviews", "Book travel");
    List<String> headlineAssetResourceNames =
        createMultipleTextAssets(googleAdsClient, customerId, headlines);
    // Creates the descriptions.
    List<String> descriptions = ImmutableList.of("Take to the air!", "Fly to the sky!");
    List<String> descriptionAssetResourceNames =
        createMultipleTextAssets(googleAdsClient, customerId, descriptions);

    // The below methods create and return MutateOperations that we later
    // provide to the GoogleAdsService.Mutate method in order to create the
    // entities in a single request. Since the entities for a Performance Max
    // campaign are closely tied to one-another, it's considered a best practice
    // to create them in a single Mutate request, so they all complete
    // successfully or fail entirely, leaving no orphaned entities. See:
    // https://developers.google.com/google-ads/api/docs/mutating/overview
    List<MutateOperation> mutateOperations = new ArrayList<>();
    mutateOperations.add(createCampaignBudgetOperation(customerId));
    mutateOperations.add(
        createPerformanceMaxCampaignOperation(customerId, merchantCenterAccountId, salesCountry));
    mutateOperations.addAll(createCampaignCriterionOperations(customerId));
    String assetGroupResourceName = ResourceNames.assetGroup(customerId, ASSET_GROUP_TEMPORARY_ID);
    mutateOperations.add(createAssetGroupOperation(customerId, assetGroupResourceName, finalUrl));
    // Retail Performance Max campaigns require listing groups, which are created via the
    // AssetGroupListingGroupFilter resource.
    mutateOperations.add(createAssetGroupListingGroupFilterOperation(assetGroupResourceName));
    mutateOperations.addAll(
        createAssetAndAssetGroupAssetOperations(
            customerId,
            assetGroupResourceName,
            headlineAssetResourceNames,
            descriptionAssetResourceNames));
    mutateOperations.addAll(createConversionGoalOperations(customerId, customerConversionGoals));

    try (GoogleAdsServiceClient googleAdsServiceClient =
        googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
      MutateGoogleAdsResponse response =
          googleAdsServiceClient.mutate(Long.toString(customerId), mutateOperations);
      printResponseDetails(response);
    }
  }

  /** Creates a MutateOperation that creates a new CampaignBudget. */
  private MutateOperation createCampaignBudgetOperation(long customerId) {
    CampaignBudget campaignBudget =
        CampaignBudget.newBuilder()
            .setName("Performance Max retail campaign budget #" + getPrintableDateTime())
            // The budget period already defaults to DAILY.
            .setAmountMicros(50_000_000)
            .setDeliveryMethod(BudgetDeliveryMethod.STANDARD)
            // A Performance Max campaign cannot use a shared campaign budget.
            .setExplicitlyShared(false)
            // Set a temporary ID in the budget's resource name, so it can be referenced
            // by the campaign in later steps.
            .setResourceName(ResourceNames.campaignBudget(customerId, BUDGET_TEMPORARY_ID))
            .build();

    return MutateOperation.newBuilder()
        .setCampaignBudgetOperation(
            CampaignBudgetOperation.newBuilder().setCreate(campaignBudget).build())
        .build();
  }


  /** Creates a MutateOperation that creates a new Performance Max campaign. */
  private MutateOperation createPerformanceMaxCampaignOperation(
      long customerId, long merchantCenterAccountId, String salesCountry) {
    Campaign performanceMaxCampaign =
        Campaign.newBuilder()
            .setName("Performance Max retail campaign #" + getPrintableDateTime())
            // Sets the campaign status as PAUSED. The campaign is the only entity in
            // the mutate request that should have its status set.
            .setStatus(CampaignStatus.PAUSED)
            // All Performance Max campaigns have an advertising_channel_type of
            // PERFORMANCE_MAX. The advertising_channel_sub_type should not be set.
            .setAdvertisingChannelType(AdvertisingChannelType.PERFORMANCE_MAX)
            // Bidding strategy must be set directly on the campaign.
            // Setting a portfolio bidding strategy by resource name is not supported.
            // Max Conversion and Maximize Conversion Value are the only strategies
            // supported for Performance Max campaigns.
            // An optional ROAS (Return on Advertising Spend) can be set for
            // maximize_conversion_value. The ROAS value must be specified as a ratio in
            // the API. It is calculated by dividing "total value" by "total spend".
            // For more information on Maximize Conversion Value, see the support
            // article: http://support.google.com/google-ads/answer/7684216.
            // A targetRoas of 3.5 corresponds to a 350% return on ad spend.
            // For first time users, it's recommended not to set a target ROAS value. Although
            // the target ROAS value is optional, you still need to define the enclosing
            // maximize_conversion_value.
            .setMaximizeConversionValue(
                MaximizeConversionValue.newBuilder()
                    // .setTargetRoas(3.5)
                    .build())
            // Below is what you would use if you want to maximize conversions:
            // .setMaximizeConversions(
            //     MaximizeConversions.newBuilder()
            //         // The target CPA is optional. This is the average amount that you would like
            //         // to spend per conversion action.
            //         // .setTargetCpaMicros(1_000_000)
            //         .build())
            // Sets the shopping settings.
            .setShoppingSetting(
                ShoppingSetting.newBuilder()
                    .setMerchantId(merchantCenterAccountId)
                    // Optional: To use products only from a specific feed, set FeedLabel to the
                    // feed label used in Merchant Center. See:
                    // https://support.google.com/merchants/answer/12453549.
                    // Removing the feedLabel field will use products from all feeds.
                    // .setFeedLabel("INSERT_FEED_LABEL_HERE")
                    .build())
            // Sets the Final URL expansion opt out. This flag is specific to
            // Performance Max campaigns. If opted out (true), only the final URLs in
            // the asset group or URLs specified in the advertiser's Google Merchant
            // Center or business data feeds are targeted.
            //
            // If opted in (false), the entire domain will be targeted. For best
            // results, set this value to false to opt in and allow URL expansions. You
            // can optionally add exclusions to limit traffic to parts of your website.
            //
            // Sets to true for this Retail campaign so the final URLs will be limited to those
            // explicitly surfaced via Google Merchant Center.
            .setUrlExpansionOptOut(true)
            // Assigns the resource name with a temporary ID.
            .setResourceName(
                ResourceNames.campaign(customerId, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID))
            // Sets the budget using the given budget resource name.
            .setCampaignBudget(ResourceNames.campaignBudget(customerId, BUDGET_TEMPORARY_ID))
            // Optional fields.
            .setStartDate(new DateTime().plusDays(1).toString("yyyyMMdd"))
            .setEndDate(new DateTime().plusDays(365).toString("yyyyMMdd"))
            .build();

    return MutateOperation.newBuilder()
        .setCampaignOperation(
            CampaignOperation.newBuilder().setCreate(performanceMaxCampaign).build())
        .build();
  }


  /** Creates a list of MutateOperations that create new campaign criteria. */
  private List<MutateOperation> createCampaignCriterionOperations(long customerId) {
    String campaignResourceName =
        ResourceNames.campaign(customerId, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID);
    List<CampaignCriterion> campaignCriteria = new ArrayList<>();
    // Sets the LOCATION campaign criteria.
    // Targets all of New York City except Brooklyn.
    // Location IDs are listed here:
    // https://developers.google.com/google-ads/api/reference/data/geotargets
    // and they can also be retrieved using the GeoTargetConstantService as shown
    // here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting
    campaignCriteria.add(
        CampaignCriterion.newBuilder()
            .setCampaign(campaignResourceName)
            // Adds one positive location target for New York City (ID=1023191), specifically adding
            // the positive criteria before the negative one.
            .setLocation(
                LocationInfo.newBuilder()
                    .setGeoTargetConstant(ResourceNames.geoTargetConstant(1023191))
                    .build())
            .setNegative(false)
            .build());
    // Next adds the negative target for Brooklyn (ID=1022762).
    campaignCriteria.add(
        CampaignCriterion.newBuilder()
            .setCampaign(campaignResourceName)
            .setLocation(
                LocationInfo.newBuilder()
                    .setGeoTargetConstant(ResourceNames.geoTargetConstant(1022762))
                    .build())
            .setNegative(true)
            .build());
    // Sets the LANGUAGE campaign criterion.
    campaignCriteria.add(
        CampaignCriterion.newBuilder()
            .setCampaign(campaignResourceName)
            // Sets the language.
            // For a list of all language codes, see:
            // https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7
            .setLanguage(
                LanguageInfo.newBuilder()
                    .setLanguageConstant(ResourceNames.languageConstant(1000)) // English
                    .build())
            .build());
    // Returns a list of mutate operations with one operation per criterion.
    return campaignCriteria.stream()
        .map(
            criterion ->
                MutateOperation.newBuilder()
                    .setCampaignCriterionOperation(
                        CampaignCriterionOperation.newBuilder().setCreate(criterion).build())
                    .build())
        .collect(Collectors.toList());
  }


  /**
   * Creates multiple text assets and returns the list of resource names.
   *
   * <p>These repeated assets must be created in a separate request prior to creating the campaign.
   */
  private List<String> createMultipleTextAssets(
      GoogleAdsClient googleAdsClient, long customerId, List<String> texts) {
    List<MutateOperation> mutateOperations = new ArrayList<>();
    for (String text : texts) {
      Asset asset = Asset.newBuilder().setTextAsset(TextAsset.newBuilder().setText(text)).build();
      AssetOperation assetOperation = AssetOperation.newBuilder().setCreate(asset).build();
      mutateOperations.add(MutateOperation.newBuilder().setAssetOperation(assetOperation).build());
    }

    List<String> assetResourceNames = new ArrayList<>();
    // Creates the service client.
    try (GoogleAdsServiceClient googleAdsServiceClient =
        googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
      // Sends the operations in a single Mutate request.
      MutateGoogleAdsResponse response =
          googleAdsServiceClient.mutate(Long.toString(customerId), mutateOperations);
      for (MutateOperationResponse result : response.getMutateOperationResponsesList()) {
        if (result.hasAssetResult()) {
          assetResourceNames.add(result.getAssetResult().getResourceName());
        }
      }
      printResponseDetails(response);
    }
    return assetResourceNames;
  }


  /** Creates a MutateOperation that create a new AssetGroup. */
  private MutateOperation createAssetGroupOperation(
      long customerId, String assetGroupResourceName, String finalUrl) {
    List<MutateOperation> mutateOperations = new ArrayList<>();
    String campaignResourceName =
        ResourceNames.campaign(customerId, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID);
    // Creates the AssetGroup.
    AssetGroup assetGroup =
        AssetGroup.newBuilder()
            .setName("Performance Max retail asset group #" + getPrintableDateTime())
            .setCampaign(campaignResourceName)
            .addFinalUrls(finalUrl)
            .addFinalMobileUrls(finalUrl)
            .setStatus(AssetGroupStatus.PAUSED)
            .setResourceName(assetGroupResourceName)
            .build();
    AssetGroupOperation assetGroupOperation =
        AssetGroupOperation.newBuilder().setCreate(assetGroup).build();
    return MutateOperation.newBuilder().setAssetGroupOperation(assetGroupOperation).build();
  }


  /** Creates a list of MutateOperations that create a new AssetGroup. */
  private List<MutateOperation> createAssetAndAssetGroupAssetOperations(
      long customerId,
      String assetGroupResourceName,
      List<String> headlineAssetResourceNames,
      List<String> descriptionAssetResourceNames)
      throws IOException {
    List<MutateOperation> mutateOperations = new ArrayList<>();

    // For the list of required assets for a Performance Max campaign, see
    // https://developers.google.com/google-ads/api/docs/performance-max/assets

    // An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
    // and providing:
    //   the resource name of the AssetGroup
    //   the resource name of the Asset
    //   the field_type of the Asset in this AssetGroup.

    // To learn more about AssetGroups, see
    // https://developers.google.com/google-ads/api/docs/performance-max/asset-groups

    // Links the previously created multiple text assets.

    // Links the headline assets.
    for (String resourceName : headlineAssetResourceNames) {
      AssetGroupAsset assetGroupAsset =
          AssetGroupAsset.newBuilder()
              .setFieldType(AssetFieldType.HEADLINE)
              .setAssetGroup(assetGroupResourceName)
              .setAsset(resourceName)
              .build();
      AssetGroupAssetOperation assetGroupAssetOperation =
          AssetGroupAssetOperation.newBuilder().setCreate(assetGroupAsset).build();
      mutateOperations.add(
          MutateOperation.newBuilder()
              .setAssetGroupAssetOperation(assetGroupAssetOperation)
              .build());
    }

    // Links the description assets.
    for (String resourceName : descriptionAssetResourceNames) {
      AssetGroupAsset assetGroupAsset =
          AssetGroupAsset.newBuilder()
              .setFieldType(AssetFieldType.DESCRIPTION)
              .setAssetGroup(assetGroupResourceName)
              .setAsset(resourceName)
              .build();
      AssetGroupAssetOperation assetGroupAssetOperation =
          AssetGroupAssetOperation.newBuilder().setCreate(assetGroupAsset).build();
      mutateOperations.add(
          MutateOperation.newBuilder()
              .setAssetGroupAssetOperation(assetGroupAssetOperation)
              .build());
    }

    // Creates and links the long headline text asset.
    mutateOperations.addAll(
        createAndLinkTextAsset(
            customerId, assetGroupResourceName, "Travel the World", AssetFieldType.LONG_HEADLINE));

    // Creates and links the business name text asset.
    mutateOperations.addAll(
        createAndLinkTextAsset(
            customerId,
            assetGroupResourceName,
            "Interplanetary Cruises",
            AssetFieldType.BUSINESS_NAME));

    // Creates and links the image assets.

    // Creates and links the Logo Asset.
    mutateOperations.addAll(
        createAndLinkImageAsset(
            customerId,
            assetGroupResourceName,
            "https://gaagl.page.link/1Crm",
            AssetFieldType.LOGO,
            "Logo Image"));

    // Creates and links the Marketing Image Asset.
    mutateOperations.addAll(
        createAndLinkImageAsset(
            customerId,
            assetGroupResourceName,
            "https://gaagl.page.link/Eit5",
            AssetFieldType.MARKETING_IMAGE,
            "Marketing Image"));

    // Creates and links the Square Marketing Image Asset.
    mutateOperations.addAll(
        createAndLinkImageAsset(
            customerId,
            assetGroupResourceName,
            "https://gaagl.page.link/bjYi",
            AssetFieldType.SQUARE_MARKETING_IMAGE,
            "Square Marketing Image"));

    return sortAssetAndAssetGroupAssetOperations(mutateOperations);
  }


  /** Creates a list of MutateOperations that create a new linked text asset. */
  List<MutateOperation> createAndLinkTextAsset(
      long customerId, String assetGroupResourceName, String text, AssetFieldType assetFieldType) {
    List<MutateOperation> mutateOperations = new ArrayList<>();
    String assetResourceName = ResourceNames.asset(customerId, getNextTemporaryId());
    // Creates the Text Asset.
    Asset asset =
        Asset.newBuilder()
            .setResourceName(assetResourceName)
            .setTextAsset(TextAsset.newBuilder().setText(text).build())
            .build();
    AssetOperation assetOperation = AssetOperation.newBuilder().setCreate(asset).build();
    mutateOperations.add(MutateOperation.newBuilder().setAssetOperation(assetOperation).build());

    // Creates an AssetGroupAsset to link the Asset to the AssetGroup.
    AssetGroupAsset assetGroupAsset =
        AssetGroupAsset.newBuilder()
            .setFieldType(assetFieldType)
            .setAssetGroup(assetGroupResourceName)
            .setAsset(assetResourceName)
            .build();
    AssetGroupAssetOperation assetGroupAssetOperation =
        AssetGroupAssetOperation.newBuilder().setCreate(assetGroupAsset).build();
    mutateOperations.add(
        MutateOperation.newBuilder().setAssetGroupAssetOperation(assetGroupAssetOperation).build());

    return mutateOperations;
  }


  /** Creates a list of MutateOperations that create a new linked image asset. */
  List<MutateOperation> createAndLinkImageAsset(
      long customerId,
      String assetGroupResourceName,
      String url,
      AssetFieldType assetFieldType,
      String assetName)
      throws IOException {
    List<MutateOperation> mutateOperations = new ArrayList<>();
    String assetResourceName = ResourceNames.asset(customerId, getNextTemporaryId());
    // Creates a media file.
    byte[] assetBytes = ByteStreams.toByteArray(new URL(url).openStream());

    // Creates the Image Asset.
    Asset asset =
        Asset.newBuilder()
            .setResourceName(assetResourceName)
            .setImageAsset(ImageAsset.newBuilder().setData(ByteString.copyFrom(assetBytes)).build())
            // Provides a unique friendly name to identify your asset. When there is an existing
            // image asset with the same content but a different name, the new name will be dropped
            // silently.
            .setName(assetName)
            .build();
    AssetOperation assetOperation = AssetOperation.newBuilder().setCreate(asset).build();
    mutateOperations.add(MutateOperation.newBuilder().setAssetOperation(assetOperation).build());

    // Creates an AssetGroupAsset to link the Asset to the AssetGroup.
    AssetGroupAsset assetGroupAsset =
        AssetGroupAsset.newBuilder()
            .setFieldType(assetFieldType)
            .setAssetGroup(assetGroupResourceName)
            .setAsset(assetResourceName)
            .build();
    AssetGroupAssetOperation assetGroupAssetOperation =
        AssetGroupAssetOperation.newBuilder().setCreate(assetGroupAsset).build();
    mutateOperations.add(
        MutateOperation.newBuilder().setAssetGroupAssetOperation(assetGroupAssetOperation).build());

    return mutateOperations;
  }


  /**
   * Sorts a list of asset and asset group asset operations.
   *
   * <p>This sorts the list such that all asset operations precede all asset group asset operations.
   * If asset group assets are created before assets then an error will be returned by the API.
   */
  private List<MutateOperation> sortAssetAndAssetGroupAssetOperations(
      List<MutateOperation> operations) {
    List<MutateOperation> sortedOperations =
        operations.stream().filter(o -> o.hasAssetOperation()).collect(Collectors.toList());
    sortedOperations.addAll(
        operations.stream()
            .filter(o -> o.hasAssetGroupAssetOperation())
            .collect(Collectors.toList()));
    return sortedOperations;
  }


  /** Retrieves the list of customer conversion goals. */
  private static List<CustomerConversionGoal> getCustomerConversionGoals(
      GoogleAdsClient googleAdsClient, long customerId) {
    String query =
        "SELECT customer_conversion_goal.category, customer_conversion_goal.origin "
            + "FROM customer_conversion_goal";

    List<CustomerConversionGoal> customerConversionGoals = new ArrayList<>();
    try (GoogleAdsServiceClient googleAdsServiceClient =
        googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
      // The number of conversion goals is typically less than 50, so we use
      // GoogleAdsService.search instead of search_stream.
      SearchPagedResponse response =
          googleAdsServiceClient.search(Long.toString(customerId), query);
      for (GoogleAdsRow googleAdsRow : response.iterateAll()) {
        customerConversionGoals.add(googleAdsRow.getCustomerConversionGoal());
      }
    }

    return customerConversionGoals;
  }

  /** Creates a list of MutateOperations that override customer conversion goals. */
  private static List<MutateOperation> createConversionGoalOperations(
      long customerId, List<CustomerConversionGoal> customerConversionGoals) {
    List<MutateOperation> mutateOperations = new ArrayList<>();
    // To override the customer conversion goals, we will change the
    // biddability of each of the customer conversion goals so that only
    // the desired conversion goal is biddable in this campaign.
    for (CustomerConversionGoal customerConversionGoal : customerConversionGoals) {
      ConversionActionCategory category = customerConversionGoal.getCategory();
      ConversionOrigin origin = customerConversionGoal.getOrigin();
      String campaignConversionGoalResourceName =
          ResourceNames.campaignConversionGoal(
              customerId, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID, category, origin);
      CampaignConversionGoal.Builder campaignConversionGoalBuilder =
          CampaignConversionGoal.newBuilder().setResourceName(campaignConversionGoalResourceName);
      // Change the biddability for the campaign conversion goal.
      // Set biddability to True for the desired (category, origin).
      // Set biddability to False for all other conversion goals.
      // Note:
      //  1- It is assumed that this Conversion Action
      //     (category=PURCHASE, origin=WEBSITE) exists in this account.
      //  2- More than one goal can be biddable if desired. This example
      //     shows only one.
      if (category == ConversionActionCategory.PURCHASE && origin == ConversionOrigin.WEBSITE) {
        campaignConversionGoalBuilder.setBiddable(true);
      } else {
        campaignConversionGoalBuilder.setBiddable(false);
      }
      CampaignConversionGoal campaignConversionGoal = campaignConversionGoalBuilder.build();
      CampaignConversionGoalOperation campaignConversionGoalOperation =
          CampaignConversionGoalOperation.newBuilder()
              .setUpdate(campaignConversionGoal)
              .setUpdateMask(FieldMasks.allSetFieldsOf(campaignConversionGoal))
              .build();
      mutateOperations.add(
          MutateOperation.newBuilder()
              .setCampaignConversionGoalOperation(campaignConversionGoalOperation)
              .build());
    }
    return mutateOperations;
  }


  /** Creates a MutateOperation that creates a new asset group listing group filter. */
  private MutateOperation createAssetGroupListingGroupFilterOperation(
      String assetGroupResourceName) {

    // Creates a new asset group listing group filter containing the "default" listing group (All
    // products).
    AssetGroupListingGroupFilter listingGroupFilter =
        AssetGroupListingGroupFilter.newBuilder()
            .setAssetGroup(assetGroupResourceName)
            // Does not set the parentListingGroupFilter since this is the root node. For all other
            // nodes, this would refer to the parent listing group filter resource name.
            // .setParentListingGroupFilter("<PARENT FILTER RESOURCE NAME>")

            // Sets the type to UNIT_INCLUDED since this node has no children.
            .setType(ListingGroupFilterType.UNIT_INCLUDED)
            // Specifies that this uses the SHOPPING listing source, as required for a Performance
            // Max retail campaign.
            .setListingSource(ListingGroupFilterListingSource.SHOPPING)
            .build();

    // Returns an operation to the list to create the listing group filter.
    return MutateOperation.newBuilder()
        .setAssetGroupListingGroupFilterOperation(
            AssetGroupListingGroupFilterOperation.newBuilder().setCreate(listingGroupFilter))
        .build();
  }


  /**
   * Prints the details of a MutateGoogleAdsResponse.
   *
   * <p>Parses the "response" oneof field name and uses it to extract the new entity's name and
   * resource name.
   */
  private void printResponseDetails(MutateGoogleAdsResponse response) {
    // Parses the Mutate response to print details about the entities that were created by the
    // request.
    String suffix = "_result";
    for (MutateOperationResponse result : response.getMutateOperationResponsesList()) {
      for (Entry<FieldDescriptor, Object> responseFields : result.getAllFields().entrySet()) {
        String fieldName = responseFields.getKey().getName();
        String value = responseFields.getValue().toString().trim();
        if (fieldName.endsWith(suffix)) {
          fieldName = fieldName.substring(0, fieldName.length() - suffix.length());
        }
        System.out.printf("Created a(n) %s with %s.%n", fieldName, value);
      }
    }
  }

  /** Returns the next temporary ID and decreases it by one. */
  private long getNextTemporaryId() {
    return temporaryId--;
  }
}
AddPerformanceMaxRetailCampaign.java
      

C#

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using CommandLine;
using Google.Ads.Gax.Examples;
using Google.Ads.Gax.Util;
using Google.Ads.GoogleAds.Config;
using Google.Ads.GoogleAds.Lib;
using Google.Ads.GoogleAds.V18.Common;
using Google.Ads.GoogleAds.V18.Errors;
using Google.Ads.GoogleAds.V18.Resources;
using Google.Ads.GoogleAds.V18.Services;
using Google.Api.Gax;
using Google.Protobuf;
using System;
using System.Collections.Generic;
using System.Threading;
using static Google.Ads.GoogleAds.V18.Enums.AdvertisingChannelTypeEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.AssetFieldTypeEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.AssetGroupStatusEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.BudgetDeliveryMethodEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.CampaignStatusEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.ConversionActionCategoryEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.ConversionOriginEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.ListingGroupFilterListingSourceEnum.Types;
using static Google.Ads.GoogleAds.V18.Enums.ListingGroupFilterTypeEnum.Types;
using static Google.Ads.GoogleAds.V18.Resources.Campaign.Types;

namespace Google.Ads.GoogleAds.Examples.V18
{
    /// <summary>
    /// This example shows how to create a Performance Max retail campaign.
    ///
    /// This will be created for "All products".
    ///
    /// For more information about Performance Max retail campaigns, see
    /// https://developers.google.com/google-ads/api/docs/performance-max/retail
    ///
    /// Prerequisites:
    /// - You need to have access to a Merchant Center account. You can find
    ///   instructions to create a Merchant Center account here:
    ///   https://support.google.com/merchants/answer/188924.
    ///   This account must be linked to your Google Ads account. The integration
    ///   instructions can be found at:
    ///   https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center
    /// - You need your Google Ads account to track conversions. The different ways
    ///   to track conversions can be found here:
    ///   https://support.google.com/google-ads/answer/1722054.
    /// - You must have at least one conversion action in the account. For
    ///   more about conversion actions, see
    ///   https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions
    /// </summary>
    public class AddPerformanceMaxRetailCampaign : ExampleBase
    {
        /// <summary>
        /// Command line options for running the <see cref="AddPerformanceMaxRetailCampaign"/>
        /// example.
        /// </summary>
        public class Options : OptionsBase
        {
            /// <summary>
            /// The Google Ads customer ID.
            /// </summary>
            [Option("customerId", Required = true, HelpText =
                "The Google Ads customer ID.")]
            public long CustomerId { get; set; }

            /// <summary>
            /// The Merchant Center account ID.
            /// </summary>
            [Option("merchantCenterAccountId", Required = true, HelpText =
                "The Merchant Center account ID.")]
            public long MerchantCenterAccountId { get; set; }

            /// <summary>
            /// The final url for the generated ads. Must have the same domain as the Merchant
            /// Center account.
            /// </summary>
            [Option("finalUrl", Required = true, HelpText =
                "The final url for the generated ads." +
                "Must have the same domain as the Merchant Center account.")]
            public string FinalUrl { get; set; }
        }

        /// <summary>
        /// Main method, to run this code example as a standalone application.
        /// </summary>
        /// <param name="args">The command line arguments.</param>
        public static void Main(string[] args)
        {
            Options options = ExampleUtilities.ParseCommandLine<Options>(args);

            AddPerformanceMaxRetailCampaign codeExample = new AddPerformanceMaxRetailCampaign();
            Console.WriteLine(codeExample.Description);
            codeExample.Run(
                new GoogleAdsClient(),
                options.CustomerId,
                options.MerchantCenterAccountId,
                options.FinalUrl
            );
        }

        // We specify temporary IDs that are specific to a single mutate request. Temporary IDs are
        // always negative and unique within one mutate request.
        //
        // See https://developers.google.com/google-ads/api/docs/mutating/best-practices for further
        // details.
        //
        // These temporary IDs are fixed because they are used in multiple places.
        private const int TEMPORARY_ID_BUDGET = -1;

        private const int TEMPORARY_ID_CAMPAIGN = -2;
        private const int TEMPORARY_ID_ASSET_GROUP = -3;

        // There are also entities that will be created in the same request but do not need to be
        // fixed temporary IDs because they are referenced only once.
        private class AssetGroupAssetTemporaryResourceNameGenerator
        {
            private long customerId;
            private long next;

            public AssetGroupAssetTemporaryResourceNameGenerator(long customerId, long assetGroupId)
            {
                this.customerId = customerId;
                this.next = assetGroupId - 1;
            }

            public string Next()
            {
                long i = next;
                Interlocked.Decrement(ref next);
                return ResourceNames.Asset(customerId, i);
            }
        }

        /// <summary>
        /// Returns a description about the code example.
        /// </summary>
        public override string Description =>
            "This example shows how to create a Performance Max retail campaign.";

        /// <summary>
        /// Runs the code example.
        /// </summary>
        /// <param name="client">The Google Ads client.</param>
        /// <param name="customerId">The Google Ads customer ID.</param>
        /// <param name="merchantCenterAccountId">The Merchant Center account ID.</param>
        /// <param name="finalUrl">The final URL.</param>
        public void Run(
                GoogleAdsClient client,
                long customerId,
                long merchantCenterAccountId,
                string finalUrl)
        {
            try
            {
                GoogleAdsServiceClient googleAdsServiceClient =
                client.GetService(Services.V18.GoogleAdsService);

                // This campaign will override the customer conversion goals.
                // Retrieve the current list of customer conversion goals.
                List<CustomerConversionGoal> customerConversionGoals =
                    GetCustomerConversionGoals(client, customerId);

                // Performance Max campaigns require that repeated assets such as headlines and
                // descriptions be created before the campaign.
                //
                // For the list of required assets for a Performance Max campaign, see
                // https://developers.google.com/google-ads/api/docs/performance-max/assets
                //
                // Create the headlines.
                List<string> headlineAssetResourceNames = CreateMultipleTextAssets(
                    client,
                    customerId,
                    new[] {
                    "Travel",
                    "Travel Reviews",
                    "Book travel"
                    }
                );

                // Create the descriptions.
                List<string> descriptionAssetResourceNames = CreateMultipleTextAssets(
                    client,
                    customerId,
                    new[] {
                    "Take to the air!",
                    "Fly to the sky!"
                    }
                );

                string tempResourceNameCampaignBudget = ResourceNames.CampaignBudget(
                    customerId,
                    TEMPORARY_ID_BUDGET
                );

                string assetGroupResourceName = ResourceNames.AssetGroup(
                    customerId,
                    TEMPORARY_ID_ASSET_GROUP
                );

                // The below methods create and return MutateOperations that we later provide to the
                // GoogleAdsService.Mutate method in order to create the entities in a single request.
                // Since the entities for a Performance Max campaign are closely tied to one-another,
                // it's considered a best practice to create them in a single Mutate request so they all
                // complete successfully or fail entirely, leaving no orphaned entities.
                //
                // See: https://developers.google.com/google-ads/api/docs/mutating/overview
                MutateOperation campaignBudgetOperation = CreateCampaignBudgetOperation(
                    tempResourceNameCampaignBudget
                );

                string tempResourceNameCampaign = ResourceNames.Campaign(
                    customerId,
                    TEMPORARY_ID_CAMPAIGN
                );

                MutateOperation performanceMaxCampaignOperation =
                    CreatePerformanceMaxCampaignOperation(
                            tempResourceNameCampaign,
                            tempResourceNameCampaignBudget,
                            merchantCenterAccountId
                        );

                List<MutateOperation> campaignCriterionOperations =
                    CreateCampaignCriterionOperations(tempResourceNameCampaign);

                List<MutateOperation> assetGroupOperations =
                    CreateAssetGroupOperations(
                        tempResourceNameCampaign,
                        assetGroupResourceName,
                        finalUrl,
                        headlineAssetResourceNames,
                        descriptionAssetResourceNames,
                        new AssetGroupAssetTemporaryResourceNameGenerator(
                            customerId,
                            TEMPORARY_ID_ASSET_GROUP
                        ),
                        client.Config
                    );

                List<MutateOperation> conversionGoalOperations =
                    CreateCustomerConversionGoalOperations(
                        customerId,
                        customerConversionGoals
                    );

                // Retail Performance Max campaigns require listing groups, which are created via the
                // AssetGroupListingGroupFilter resource.
                List<MutateOperation> assetGroupListingGroupOperations =
                    CreateAssetGroupListingGroupOperations(
                        assetGroupResourceName
                    );

                MutateGoogleAdsRequest request = new MutateGoogleAdsRequest
                {
                    CustomerId = customerId.ToString()
                };

                // It's important to create these entities in this order because they depend on
                // each other.
                //
                // Additionally, we take several lists of operations and flatten them into one
                // large list.
                request.MutateOperations.Add(campaignBudgetOperation);
                request.MutateOperations.Add(performanceMaxCampaignOperation);
                request.MutateOperations.AddRange(campaignCriterionOperations);
                request.MutateOperations.AddRange(assetGroupOperations);
                request.MutateOperations.AddRange(conversionGoalOperations);
                request.MutateOperations.AddRange(assetGroupListingGroupOperations);

                MutateGoogleAdsResponse response = googleAdsServiceClient.Mutate(request);

                PrintResponseDetails(response);
            }
            catch (GoogleAdsException e)
            {
                Console.WriteLine("Failure:");
                Console.WriteLine($"Message: {e.Message}");
                Console.WriteLine($"Failure: {e.Failure}");
                Console.WriteLine($"Request ID: {e.RequestId}");
                throw;
            }
        }

        /// <summary>
        /// Creates a MutateOperation that creates a new CampaignBudget.
        ///
        /// A temporary ID will be assigned to this campaign budget so that it can be
        /// referenced by other objects being created in the same Mutate request.
        /// </summary>
        /// <param name="budgetResourceName">The temporary resource name of the budget to
        /// create.</param>
        /// <returns>A MutateOperation that creates a CampaignBudget.</returns>
        private MutateOperation CreateCampaignBudgetOperation(
            string budgetResourceName)
        {
            MutateOperation operation = new MutateOperation
            {
                CampaignBudgetOperation = new CampaignBudgetOperation
                {
                    Create = new CampaignBudget
                    {
                        Name = "Performance Max campaign budget #"
                          + ExampleUtilities.GetRandomString(),

                        // The budget period already defaults to Daily.
                        AmountMicros = 50000000,
                        DeliveryMethod = BudgetDeliveryMethod.Standard,

                        // A Performance Max campaign cannot use a shared campaign budget.
                        ExplicitlyShared = false,

                        // Set a temporary ID in the budget's resource name so it can be referenced
                        // by the campaign in later steps.
                        ResourceName = budgetResourceName
                    }
                }
            };

            return operation;
        }


        /// Creates a MutateOperation that creates a new Performance Max campaign.
        /// <param name="campaignResourceName">The campaign resource name.</param>
        /// <param name="campaignBudgetResourceName">The campaign budget resource name.</param>
        /// <param name="merchantCenterAccountId">The Merchant Center account ID.</param>
        /// <returns>A MutateOperations that will create this new campaign.</returns>
        private MutateOperation CreatePerformanceMaxCampaignOperation(
            string campaignResourceName,
            string campaignBudgetResourceName,
            long merchantCenterAccountId)
        {
            MutateOperation operation = new MutateOperation()
            {
                CampaignOperation = new CampaignOperation()
                {
                    Create = new Campaign()
                    {
                        Name = "Performance Max campaign #" + ExampleUtilities.GetRandomString(),

                        // Set the campaign status as PAUSED. The campaign is the only entity in
                        // the mutate request that should have its status set.
                        Status = CampaignStatus.Paused,

                        // All Performance Max campaigns have an advertising_channel_type of
                        // PERFORMANCE_MAX. The advertising_channel_sub_type should not be set.
                        AdvertisingChannelType = AdvertisingChannelType.PerformanceMax,

                        // Bidding strategy must be set directly on the campaign. Setting a
                        // portfolio bidding strategy by resource name is not supported. Max
                        // Conversion and Maximize Conversion Value are the only strategies
                        // supported for Performance Max campaigns. BiddingStrategyTYpe is
                        // read-only and cannot be set by the API. An optional ROAS (Return on
                        // Advertising Spend) can be set to enable the MaximizeConversionValue
                        // bidding strategy. The ROAS value must be specified as a ratio in the API.
                        // It is calculated by dividing "total value" by "total spend".
                        //
                        // For more information on Maximize Conversion Value, see the support
                        // article:
                        // http://support.google.com/google-ads/answer/7684216.
                        //
                        // A target_roas of 3.5 corresponds to a 350% return on ad spend.
                        MaximizeConversionValue = new MaximizeConversionValue()
                        {
                            TargetRoas = 3.5
                        },

                        ShoppingSetting = new ShoppingSetting()
                        {
                            MerchantId = merchantCenterAccountId,
                            // Optional: To use products only from a specific feed, set FeedLabel
                            // to the feed label used in Merchant Center.
                            // See: https://support.google.com/merchants/answer/12453549.
                            // Omitting the FeedLabel field will use products from all feeds.
                            // FeedLabel = "INSERT_FEED_LABEL_HERE"
                        },

                        // Set the Final URL expansion opt out. This flag is specific to
                        // Performance Max campaigns. If opted out (True), only the final URLs in
                        // the asset group or URLs specified in the advertiser's Google Merchant
                        // Center or business data feeds are targeted.
                        //
                        // If opted in (False), the entire domain will be targeted. For best
                        // results, set this value to false to opt in and allow URL expansions. You
                        // can optionally add exclusions to limit traffic to parts of your website.
                        //
                        // For a Retail campaign, we want the final URL's to be limited to those
                        // explicitly surfaced via GMC.
                        UrlExpansionOptOut = true,

                        // Use the temporary resource name created earlier
                        ResourceName = campaignResourceName,

                        // Set the budget using the given budget resource name.
                        CampaignBudget = campaignBudgetResourceName,

                        // Optional fields
                        StartDate = DateTime.Now.AddDays(1).ToString("yyyyMMdd"),
                        EndDate = DateTime.Now.AddDays(365).ToString("yyyyMMdd")
                    }
                }
            };

            return operation;
        }


        /// <summary>
        /// Creates a list of MutateOperations that create new campaign criteria.
        /// </summary>
        /// <param name="campaignResourceName">The campaign resource name.</param>
        /// <returns>A list of MutateOperations that create new campaign criteria.</returns>
        private List<MutateOperation> CreateCampaignCriterionOperations(
            string campaignResourceName)
        {
            List<MutateOperation> operations = new List<MutateOperation>();

            // Set the LOCATION campaign criteria.
            // Target all of New York City except Brooklyn.
            // Location IDs are listed here:
            // https://developers.google.com/google-ads/api/reference/data/geotargets
            // and they can also be retrieved using the GeoTargetConstantService as shown
            // here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting
            //
            // We will add one positive location target for New York City (ID=1023191)
            // and one negative location target for Brooklyn (ID=1022762).
            // First, add the positive (negative = False) for New York City.
            MutateOperation operation1 = new MutateOperation()
            {
                CampaignCriterionOperation = new CampaignCriterionOperation()
                {
                    Create = new CampaignCriterion()
                    {
                        Campaign = campaignResourceName,
                        Location = new LocationInfo()
                        {
                            GeoTargetConstant = ResourceNames.GeoTargetConstant(1023191)
                        },

                        Negative = false
                    }
                }
            };

            operations.Add(operation1);

            // Next add the negative target for Brooklyn.
            MutateOperation operation2 = new MutateOperation()
            {
                CampaignCriterionOperation = new CampaignCriterionOperation()
                {
                    Create = new CampaignCriterion()
                    {
                        Campaign = campaignResourceName,
                        Location = new LocationInfo()
                        {
                            GeoTargetConstant = ResourceNames.GeoTargetConstant(1022762)
                        },

                        Negative = true
                    }
                }
            };

            operations.Add(operation2);

            // Set the LANGUAGE campaign criterion.
            MutateOperation operation3 = new MutateOperation()
            {
                CampaignCriterionOperation = new CampaignCriterionOperation()
                {
                    Create = new CampaignCriterion()
                    {
                        Campaign = campaignResourceName,

                        // Set the language.
                        // For a list of all language codes, see:
                        // https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7
                        Language = new LanguageInfo()
                        {
                            LanguageConstant = ResourceNames.LanguageConstant(1000) // English
                        },
                    }
                }
            };

            operations.Add(operation3);

            return operations;
        }


        /// <summary>
        /// Creates multiple text assets and returns the list of resource names.
        /// These repeated assets must be created in a separate request prior to
        /// creating the campaign.
        /// </summary>
        /// <param name="client">The Google Ads Client.</param>
        /// <param name="customerId">The customer's ID.</param>
        /// <param name="texts">The texts to add.</param>
        /// <returns>A list of asset resource names.</returns>
        private List<string> CreateMultipleTextAssets(
            GoogleAdsClient client,
            long customerId,
            string[] texts)
        {
            // Get the GoogleAdsService.
            GoogleAdsServiceClient googleAdsServiceClient =
                client.GetService(Services.V18.GoogleAdsService);

            MutateGoogleAdsRequest request = new MutateGoogleAdsRequest()
            {
                CustomerId = customerId.ToString()
            };

            foreach (string text in texts)
            {
                request.MutateOperations.Add(
                    new MutateOperation()
                    {
                        AssetOperation = new AssetOperation()
                        {
                            Create = new Asset()
                            {
                                TextAsset = new TextAsset()
                                {
                                    Text = text
                                }
                            }
                        }
                    }
                );
            }

            // Send the operations in a single Mutate request.
            MutateGoogleAdsResponse response = googleAdsServiceClient.Mutate(request);

            List<string> assetResourceNames = new List<string>();

            foreach (MutateOperationResponse operationResponse in response.MutateOperationResponses)
            {
                MutateAssetResult assetResult = operationResponse.AssetResult;
                assetResourceNames.Add(assetResult.ResourceName);
            }

            PrintResponseDetails(response);

            return assetResourceNames;
        }


        /// <summary>
        /// Creates a list of MutateOperations that create a new asset_group.
        /// </summary>
        /// <param name="campaignResourceName">The campaign resource name.</param>
        /// <param name="assetGroupResourceName">The asset group resource name.</param>
        /// <param name="finalUrl">The final url.</param>
        /// <param name="headlineAssetResourceNames">The headline asset resource names.</param>
        /// <param name="descriptionAssetResourceNames">The description asset resource
        /// names.</param>
        /// <param name="resourceNameGenerator">A generator for unique temporary ID's.</param>
        /// <param name="config">The Google Ads config.</param>
        /// <returns>A list of MutateOperations that create the new asset group.</returns>
        private List<MutateOperation> CreateAssetGroupOperations(
            string campaignResourceName,
            string assetGroupResourceName,
            string finalUrl,
            List<string> headlineAssetResourceNames,
            List<string> descriptionAssetResourceNames,
            AssetGroupAssetTemporaryResourceNameGenerator resourceNameGenerator,
            GoogleAdsConfig config)
        {
            List<MutateOperation> operations = new List<MutateOperation>();

            // For the list of required assets for a Performance Max campaign, see
            // https://developers.google.com/google-ads/api/docs/performance-max/assets

            // Create and link the long headline text asset.
            string longHeadlineResourceName = resourceNameGenerator.Next();
            operations.Add(
                CreateTextAssetOperation(
                    longHeadlineResourceName,
                    "Travel the World"
                )
            );

            // Create the business name text asset.
            string businessNameResourceName = resourceNameGenerator.Next();
            operations.Add(
                CreateTextAssetOperation(
                    businessNameResourceName,
                    "Interplanetary Cruises"
                )
            );

            // Create the Logo Asset.
            string logoResourceName = resourceNameGenerator.Next();
            operations.Add(
                CreateImageAssetOperation(
                    logoResourceName,
                    "https://gaagl.page.link/1Crm",
                    "Logo Image",
                    config
                )
            );

            // Create the Marketing Image Asset.
            string marketingImageResourceName = resourceNameGenerator.Next();
            operations.Add(
                CreateImageAssetOperation(
                    marketingImageResourceName,
                    "https://gaagl.page.link/Eit5",
                    "Marketing Image",
                    config
                )
            );

            // Create the Square Marketing Image Asset.
            string squareMarketingImageResourceName = resourceNameGenerator.Next();
            operations.Add(
                CreateImageAssetOperation(
                    squareMarketingImageResourceName,
                    "https://gaagl.page.link/bjYi",
                    "Square Marketing Image",
                    config
                )
            );

            // An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
            // and providing:
            //   the resource name of the AssetGroup
            //   the resource name of the Asset
            //   the field_type of the Asset in this AssetGroup.
            //
            // To learn more about AssetGroups, see
            // https://developers.google.com/google-ads/api/docs/performance-max/asset-groups
            //
            // Also, note that all asset creation operations must be before the
            // asset group creation operation and the asset group linking operations.

            // Create the AssetGroup
            operations.Add(
                new MutateOperation()
                {
                    AssetGroupOperation = new AssetGroupOperation()
                    {
                        Create = new AssetGroup()
                        {
                            Name = "Performance Max asset group #" +
                                ExampleUtilities.GetRandomString(),

                            Campaign = campaignResourceName,
                            FinalUrls = { finalUrl },
                            FinalMobileUrls = { finalUrl },
                            Status = AssetGroupStatus.Paused,
                            ResourceName = assetGroupResourceName
                        }
                    }
                }
            );

            // Link the previously created assets.

            // Link the headline assets.
            foreach (string resourceName in headlineAssetResourceNames)
            {
                operations.Add(
                    new MutateOperation()
                    {
                        AssetGroupAssetOperation = new AssetGroupAssetOperation()
                        {
                            Create = new AssetGroupAsset()
                            {
                                FieldType = AssetFieldType.Headline,
                                AssetGroup = assetGroupResourceName,
                                Asset = resourceName
                            }
                        }
                    }
                );
            }

            // Link the description assets.
            foreach (string resourceName in descriptionAssetResourceNames)
            {
                operations.Add(
                    new MutateOperation()
                    {
                        AssetGroupAssetOperation = new AssetGroupAssetOperation()
                        {
                            Create = new AssetGroupAsset()
                            {
                                FieldType = AssetFieldType.Description,
                                AssetGroup = assetGroupResourceName,
                                Asset = resourceName
                            }
                        }
                    }
                );
            }

            operations.Add(
                CreateLinkAssetOperation(
                    AssetFieldType.LongHeadline,
                    assetGroupResourceName,
                    longHeadlineResourceName
                )
            );

            operations.Add(
                CreateLinkAssetOperation(
                    AssetFieldType.BusinessName,
                    assetGroupResourceName,
                    businessNameResourceName
                )
            );

            operations.Add(
                CreateLinkAssetOperation(
                    AssetFieldType.Logo,
                    assetGroupResourceName,
                    logoResourceName
                )
            );

            operations.Add(
                CreateLinkAssetOperation(
                    AssetFieldType.MarketingImage,
                    assetGroupResourceName,
                    marketingImageResourceName
                )
            );

            operations.Add(
                CreateLinkAssetOperation(
                    AssetFieldType.SquareMarketingImage,
                    assetGroupResourceName,
                    squareMarketingImageResourceName
                )
            );

            return operations;
        }


        /// <summary>
        /// Creates a MutateOperation that creates a new text asset.
        /// </summary>
        /// <param name="assetResourceName">The resource name of the text asset to be
        /// created.</param>
        /// <param name="text">The text of the asset to be created.</param>
        /// <returns>A MutateOperation that creates the new text asset.</returns>
        private MutateOperation CreateTextAssetOperation(
            string assetResourceName,
            string text) => new MutateOperation()
            {
                AssetOperation = new AssetOperation()
                {
                    Create = new Asset()
                    {
                        ResourceName = assetResourceName,
                        TextAsset = new TextAsset()
                        {
                            Text = text
                        }
                    }
                }
            };


        /// <summary>
        /// Creates a MutateOperation that creates a new image asset.
        /// </summary>
        /// <param name="assetResourceName">The resource name of the text asset to be
        /// created.</param>
        /// <param name="url">The url of the image to be retrieved and put into an asset.</param>
        /// <param name="assetName">The asset name.</param>
        /// <param name="config">The Google Ads config.</param>
        /// <returns>A MutateOperation that creates a new image asset.</returns>
        private MutateOperation CreateImageAssetOperation(
            string assetResourceName,
            string url,
            string assetName,
            GoogleAdsConfig config) => new MutateOperation()
            {
                AssetOperation = new AssetOperation()
                {
                    Create = new Asset()
                    {
                        ResourceName = assetResourceName,
                        ImageAsset = new ImageAsset()
                        {
                            Data =
                            ByteString.CopyFrom(
                                MediaUtilities.GetAssetDataFromUrl(url, config)
                            )
                        },
                        // Provide a unique friendly name to identify your asset.
                        // When there is an existing image asset with the same content but a
                        // different name, the new name will be dropped silently.
                        Name = assetName
                    }
                }
            };


        /// <summary>
        /// Creates a MutateOperation that links an asset to an asset group.
        /// </summary>
        /// <param name="fieldType">The field type of the asset to be linked.</param>
        /// <param name="assetGroupResourceName">The resource name of the asset group
        /// to link the asset to.</param>
        /// <param name="assetResourceName">The resource name of the text asset to be
        /// linked.</param>
        /// <returns>A MutateOperation that links an asset to an asset group.</returns>
        private MutateOperation CreateLinkAssetOperation(
            AssetFieldType fieldType,
            string assetGroupResourceName,
            string assetResourceName) => new MutateOperation()
            {
                AssetGroupAssetOperation = new AssetGroupAssetOperation()
                {
                    Create = new AssetGroupAsset()
                    {
                        FieldType = fieldType,
                        AssetGroup = assetGroupResourceName,
                        Asset = assetResourceName
                    }
                }
            };


        /// <summary>
        /// Retrieves the list of customer conversion goals.
        /// </summary>
        /// <param name="client">The Google Ads Client.</param>
        /// <param name="customerId">The customer's id.</param>
        /// <returns>A list customer conversion goals.</returns>
        private List<CustomerConversionGoal> GetCustomerConversionGoals(
            GoogleAdsClient client,
            long customerId)
        {
            // Get the GoogleAdsService.
            GoogleAdsServiceClient googleAdsServiceClient =
                client.GetService(Services.V18.GoogleAdsService);

            List<CustomerConversionGoal> conversionGoals = new List<CustomerConversionGoal>();

            SearchGoogleAdsRequest request = new SearchGoogleAdsRequest()
            {
                CustomerId = customerId.ToString(),
                Query =
                    @"SELECT
                        customer_conversion_goal.category,
                        customer_conversion_goal.origin
                    FROM
                        customer_conversion_goal"
            };

            // The number of conversion goals is typically less than 50 so we use
            // GoogleAdsService.search instead of search_stream.
            PagedEnumerable<SearchGoogleAdsResponse, GoogleAdsRow> searchPagedResponse =
                googleAdsServiceClient.Search(request);

            // Iterate over the results and build the list of conversion goals.
            foreach (GoogleAdsRow row in searchPagedResponse)
            {
                conversionGoals.Add(row.CustomerConversionGoal);
            }

            return conversionGoals;
        }

        /// <summary>
        /// Creates a list of MutateOperations that override customer conversion goals.
        /// </summary>
        /// <param name="customerId">The customer's id.</param>
        /// <param name="conversionGoals">A list customer conversion goals.</param>
        /// <returns>A list customer conversion goal operations.</returns>
        private List<MutateOperation> CreateCustomerConversionGoalOperations(
            long customerId,
            List<CustomerConversionGoal> conversionGoals)
        {
            List<MutateOperation> operations =
                new List<MutateOperation>();

            foreach (CustomerConversionGoal conversionGoal in conversionGoals)
            {
                CustomerConversionGoal newConversionGoal = new CustomerConversionGoal()
                {
                    ResourceName = ResourceNames.CustomerConversionGoal(
                        customerId,
                        conversionGoal.Category,
                        conversionGoal.Origin
                    ),
                };

                // Change the biddability for the campaign conversion goal.
                // Set biddability to True for the desired (category, origin).
                // Set biddability to False for all other conversion goals.
                // Note:
                //  1- It is assumed that this Conversion Action
                //     (category=PURCHASE, origin=WEBSITE) exists in this account.
                //  2- More than one goal can be biddable if desired. This example
                //     shows only one.
                newConversionGoal.Biddable =
                    conversionGoal.Category == ConversionActionCategory.Purchase &&
                    conversionGoal.Origin == ConversionOrigin.Website;

                operations.Add(
                    new MutateOperation()
                    {
                        CustomerConversionGoalOperation = new CustomerConversionGoalOperation()
                        {
                            Update = newConversionGoal,
                            UpdateMask = FieldMasks.AllSetFieldsOf(newConversionGoal)
                        }
                    }
                );
            }

            return operations;
        }


        /// <summary>
        /// Creates a list of MutateOperations that create a new asset group
        /// listing group filter.
        /// </summary>
        /// <param name="assetGroupResourceName">The resource name of the asset group.</param>
        /// <returns>A list of mutate operations.</returns>
        private List<MutateOperation> CreateAssetGroupListingGroupOperations(
            string assetGroupResourceName)
        {
            List<MutateOperation> operations = new List<MutateOperation>();

            // Creates a new ad group criterion containing the "default" listing group (All
            // products).
            AssetGroupListingGroupFilter listingGroupFilter = new AssetGroupListingGroupFilter()
            {
                AssetGroup = assetGroupResourceName,

                // Since this is the root node, do not set the ParentListingGroupFilter. For all
                // other nodes, this would refer to the parent listing group filter resource name.
                // ParentListingGroupFilter = "<PARENT FILTER NAME>"

                // The UnitIncluded means this node has no children.
                Type = ListingGroupFilterType.UnitIncluded,

                // Because this is a Performance Max campaign for retail, we need to specify that
                // this is in the shopping listing source.
                ListingSource = ListingGroupFilterListingSource.Shopping
            };

            AssetGroupListingGroupFilterOperation operation =
                new AssetGroupListingGroupFilterOperation()
                {
                    Create = listingGroupFilter
                };

            operations.Add(
                new MutateOperation()
                {
                    AssetGroupListingGroupFilterOperation = operation
                }
            );

            return operations;
        }


        /// <summary>
        /// Prints the details of a MutateGoogleAdsResponse. Parses the "response" oneof field name
        /// and uses it to extract the new entity's name and resource name.
        /// </summary>
        /// <param name="response">A MutateGoogleAdsResponse instance.</param>
        private void PrintResponseDetails(MutateGoogleAdsResponse response)
        {
            // Parse the Mutate response to print details about the entities that were created
            // in the request.
            foreach (MutateOperationResponse operationResponse in response.MutateOperationResponses)
            {
                string resourceName;

                string entityName = operationResponse.ResponseCase.ToString();
                // Trim the substring "Result" from the end of the entity name.
                entityName = entityName.Remove(entityName.Length - 6);

                switch (operationResponse.ResponseCase)
                {
                    case MutateOperationResponse.ResponseOneofCase.AdGroupResult:
                        resourceName = operationResponse.AdGroupResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.AdGroupAdResult:
                        resourceName = operationResponse.AdGroupAdResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.CampaignResult:
                        resourceName = operationResponse.CampaignResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.CampaignBudgetResult:
                        resourceName = operationResponse.CampaignBudgetResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.CampaignCriterionResult:
                        resourceName = operationResponse.CampaignCriterionResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.SmartCampaignSettingResult:
                        resourceName = operationResponse.SmartCampaignSettingResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.AssetResult:
                        resourceName = operationResponse.AssetResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.AssetGroupAssetResult:
                        resourceName = operationResponse.AssetGroupAssetResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.AssetGroupResult:
                        resourceName = operationResponse.AssetGroupResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.AssetGroupListingGroupFilterResult:
                        resourceName = operationResponse.AssetGroupListingGroupFilterResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.CampaignConversionGoalResult:
                        resourceName = operationResponse.CampaignConversionGoalResult.ResourceName;
                        break;

                    case MutateOperationResponse.ResponseOneofCase.CustomerConversionGoalResult:
                        resourceName = operationResponse.CustomerConversionGoalResult.ResourceName;
                        break;

                    default:
                        resourceName = "<not found>";
                        break;
                }

                Console.WriteLine(
                    $"Created a(n) {entityName} with resource name: '{resourceName}'.");
            }
        }
    }
}
AddPerformanceMaxRetailCampaign.cs
      

PHP

<?php

/**
 * Copyright 2021 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Google\Ads\GoogleAds\Examples\ShoppingAds;

require __DIR__ . '/../../vendor/autoload.php';

use GetOpt\GetOpt;
use Google\Ads\GoogleAds\Examples\Utils\ArgumentNames;
use Google\Ads\GoogleAds\Examples\Utils\ArgumentParser;
use Google\Ads\GoogleAds\Examples\Utils\Helper;
use Google\Ads\GoogleAds\Lib\OAuth2TokenBuilder;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsClient;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsClientBuilder;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsException;
use Google\Ads\GoogleAds\Util\FieldMasks;
use Google\Ads\GoogleAds\Util\V18\ResourceNames;
use Google\Ads\GoogleAds\V18\Common\ImageAsset;
use Google\Ads\GoogleAds\V18\Common\LanguageInfo;
use Google\Ads\GoogleAds\V18\Common\LocationInfo;
use Google\Ads\GoogleAds\V18\Common\MaximizeConversionValue;
use Google\Ads\GoogleAds\V18\Common\TextAsset;
use Google\Ads\GoogleAds\V18\Enums\AdvertisingChannelTypeEnum\AdvertisingChannelType;
use Google\Ads\GoogleAds\V18\Enums\AssetFieldTypeEnum\AssetFieldType;
use Google\Ads\GoogleAds\V18\Enums\AssetGroupStatusEnum\AssetGroupStatus;
use Google\Ads\GoogleAds\V18\Enums\BudgetDeliveryMethodEnum\BudgetDeliveryMethod;
use Google\Ads\GoogleAds\V18\Enums\CampaignStatusEnum\CampaignStatus;
use Google\Ads\GoogleAds\V18\Enums\ConversionActionCategoryEnum\ConversionActionCategory;
use Google\Ads\GoogleAds\V18\Enums\ConversionOriginEnum\ConversionOrigin;
use Google\Ads\GoogleAds\V18\Enums\ListingGroupFilterListingSourceEnum\ListingGroupFilterListingSource;
use Google\Ads\GoogleAds\V18\Enums\ListingGroupFilterTypeEnum\ListingGroupFilterType;
use Google\Ads\GoogleAds\V18\Errors\GoogleAdsError;
use Google\Ads\GoogleAds\V18\Resources\Asset;
use Google\Ads\GoogleAds\V18\Resources\AssetGroup;
use Google\Ads\GoogleAds\V18\Resources\AssetGroupAsset;
use Google\Ads\GoogleAds\V18\Resources\AssetGroupListingGroupFilter;
use Google\Ads\GoogleAds\V18\Resources\Campaign;
use Google\Ads\GoogleAds\V18\Resources\Campaign\ShoppingSetting;
use Google\Ads\GoogleAds\V18\Resources\CampaignBudget;
use Google\Ads\GoogleAds\V18\Resources\CampaignConversionGoal;
use Google\Ads\GoogleAds\V18\Resources\CampaignCriterion;
use Google\Ads\GoogleAds\V18\Services\AssetGroupAssetOperation;
use Google\Ads\GoogleAds\V18\Services\AssetGroupListingGroupFilterOperation;
use Google\Ads\GoogleAds\V18\Services\AssetGroupOperation;
use Google\Ads\GoogleAds\V18\Services\AssetOperation;
use Google\Ads\GoogleAds\V18\Services\CampaignBudgetOperation;
use Google\Ads\GoogleAds\V18\Services\CampaignConversionGoalOperation;
use Google\Ads\GoogleAds\V18\Services\CampaignCriterionOperation;
use Google\Ads\GoogleAds\V18\Services\CampaignOperation;
use Google\Ads\GoogleAds\V18\Services\GoogleAdsRow;
use Google\Ads\GoogleAds\V18\Services\MutateGoogleAdsRequest;
use Google\Ads\GoogleAds\V18\Services\MutateGoogleAdsResponse;
use Google\Ads\GoogleAds\V18\Services\MutateOperation;
use Google\Ads\GoogleAds\V18\Services\MutateOperationResponse;
use Google\Ads\GoogleAds\V18\Services\SearchGoogleAdsRequest;
use Google\ApiCore\ApiException;
use Google\ApiCore\Serializer;

/**
 * This example shows how to create a Performance Max retail campaign.
 *
 * This will be created for "All products".
 *
 * For more information about Performance Max retail campaigns, see
 * https://developers.google.com/google-ads/api/docs/performance-max/retail.
 *
 * Prerequisites:
 * - You need to have access to a Merchant Center account. You can find
 * instructions to create a Merchant Center account here:
 * https://support.google.com/merchants/answer/188924.
 * This account must be linked to your Google Ads account. The integration
 * instructions can be found at:
 * https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center
 * - You need your Google Ads account to track conversions. The different ways
 * to track conversions can be found here:
 * https://support.google.com/google-ads/answer/1722054.
 * - You must have at least one conversion action in the account. For more about conversion
 * actions, see
 * https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions.
 */
class AddPerformanceMaxRetailCampaign
{
    private const CUSTOMER_ID = 'INSERT_CUSTOMER_ID_HERE';
    private const MERCHANT_CENTER_ACCOUNT_ID = 'INSERT_MERCHANT_CENTER_ACCOUNT_ID_HERE';
    private const SALES_COUNTRY = 'US';
    // The final URL for the generated ads. Must have the same domain as the Merchant Center
    // account.
    private const FINAL_URL = 'INSERT_FINAL_URL_HERE';

    // We specify temporary IDs that are specific to a single mutate request.
    // Temporary IDs are always negative and unique within one mutate request.
    //
    // See https://developers.google.com/google-ads/api/docs/mutating/best-practices
    // for further details.
    //
    // These temporary IDs are fixed because they are used in multiple places.
    private const BUDGET_TEMPORARY_ID = -1;
    private const PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID = -2;
    private const ASSET_GROUP_TEMPORARY_ID = -3;

    // There are also entities that will be created in the same request but do not need to be fixed
    // temporary IDs because they are referenced only once.
    /** @var int the negative temporary ID used in bulk mutates. */
    private static $nextTempId = self::ASSET_GROUP_TEMPORARY_ID - 1;

    public static function main()
    {
        // Either pass the required parameters for this example on the command line, or insert them
        // into the constants above.
        $options = (new ArgumentParser())->parseCommandArguments([
            ArgumentNames::CUSTOMER_ID => GetOpt::REQUIRED_ARGUMENT,
            ArgumentNames::MERCHANT_CENTER_ACCOUNT_ID => GetOpt::REQUIRED_ARGUMENT,
            ArgumentNames::FINAL_URL => GetOpt::REQUIRED_ARGUMENT
        ]);

        // Generate a refreshable OAuth2 credential for authentication.
        $oAuth2Credential = (new OAuth2TokenBuilder())->fromFile()->build();

        // Construct a Google Ads client configured from a properties file and the
        // OAuth2 credentials above.
        $googleAdsClient = (new GoogleAdsClientBuilder())
            ->fromFile()
            ->withOAuth2Credential($oAuth2Credential)
            ->build();

        try {
            self::runExample(
                $googleAdsClient,
                $options[ArgumentNames::CUSTOMER_ID] ?: self::CUSTOMER_ID,
                $options[ArgumentNames::MERCHANT_CENTER_ACCOUNT_ID]
                    ?: self::MERCHANT_CENTER_ACCOUNT_ID,
                $options[ArgumentNames::SALES_COUNTRY] ?: self::SALES_COUNTRY,
                $options[ArgumentNames::FINAL_URL] ?: self::FINAL_URL
            );
        } catch (GoogleAdsException $googleAdsException) {
            printf(
                "Request with ID '%s' has failed.%sGoogle Ads failure details:%s",
                $googleAdsException->getRequestId(),
                PHP_EOL,
                PHP_EOL
            );
            foreach ($googleAdsException->getGoogleAdsFailure()->getErrors() as $error) {
                /** @var GoogleAdsError $error */
                printf(
                    "\t%s: %s%s",
                    $error->getErrorCode()->getErrorCode(),
                    $error->getMessage(),
                    PHP_EOL
                );
            }
            exit(1);
        } catch (ApiException $apiException) {
            printf(
                "ApiException was thrown with message '%s'.%s",
                $apiException->getMessage(),
                PHP_EOL
            );
            exit(1);
        }
    }

    /**
     * Runs the example.
     *
     * @param GoogleAdsClient $googleAdsClient the Google Ads API client
     * @param int $customerId the customer ID
     * @param int $merchantCenterAccountId the Merchant Center account ID
     * @param string $finalUrl the final URL for the asset group of the campaign
     */
    public static function runExample(
        GoogleAdsClient $googleAdsClient,
        int $customerId,
        int $merchantCenterAccountId,
        string $finalUrl
    ) {
        // This campaign will override the customer conversion goals.
        // Retrieves the current list of customer conversion goals.
        $customerConversionGoals = self::getCustomerConversionGoals(
            $googleAdsClient,
            $customerId
        );

        // Performance Max campaigns require that repeated assets such as headlines
        // and descriptions be created before the campaign.
        // For the list of required assets for a Performance Max campaign, see
        // https://developers.google.com/google-ads/api/docs/performance-max/assets.
        //
        // Creates the headlines.
        $headlineAssetResourceNames = self::createMultipleTextAssets(
            $googleAdsClient,
            $customerId,
            ["Travel", "Travel Reviews", "Book travel"]
        );
        // Creates the descriptions.
        $descriptionAssetResourceNames = self::createMultipleTextAssets(
            $googleAdsClient,
            $customerId,
            ["Take to the air!", "Fly to the sky!"]
        );

        // It's important to create the below entities in this order because they depend on
        // each other.
        $operations = [];
        // The below methods create and return MutateOperations that we later
        // provide to the GoogleAdsService.Mutate method in order to create the
        // entities in a single request. Since the entities for a Performance Max
        // campaign are closely tied to one-another, it's considered a best practice
        // to create them in a single Mutate request so they all complete
        // successfully or fail entirely, leaving no orphaned entities. See:
        // https://developers.google.com/google-ads/api/docs/mutating/overview.
        $operations[] = self::createCampaignBudgetOperation($customerId);
        $operations[] = self::createPerformanceMaxCampaignOperation(
            $customerId,
            $merchantCenterAccountId
        );
        $operations =
            array_merge($operations, self::createCampaignCriterionOperations($customerId));
        $operations[] = self::createAssetGroupOperation($customerId, $finalUrl);
        $operations[] = self::createAssetGroupListingGroupFilterOperation($customerId);
        $operations = array_merge($operations, self::createAssetandAssetGroupAssetOperations(
            $customerId,
            $headlineAssetResourceNames,
            $descriptionAssetResourceNames
        ));
        $operations = array_merge($operations, self::createConversionGoalOperations(
            $customerId,
            $customerConversionGoals
        ));

        // Issues a mutate request to create everything and prints its information.
        $googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
        $response = $googleAdsServiceClient->mutate(
            MutateGoogleAdsRequest::build($customerId, $operations)
        );

        self::printResponseDetails($response);
    }

    /**
     * Creates a MutateOperation that creates a new CampaignBudget.
     *
     * A temporary ID will be assigned to this campaign budget so that it can be
     * referenced by other objects being created in the same Mutate request.
     *
     * @param int $customerId the customer ID
     * @return MutateOperation the mutate operation that creates a campaign budget
     */
    private static function createCampaignBudgetOperation(int $customerId): MutateOperation
    {
        // Creates a mutate operation that creates a campaign budget operation.
        return new MutateOperation([
            'campaign_budget_operation' => new CampaignBudgetOperation([
                'create' => new CampaignBudget([
                    // Sets a temporary ID in the budget's resource name so it can be referenced
                    // by the campaign in later steps.
                    'resource_name' => ResourceNames::forCampaignBudget(
                        $customerId,
                        self::BUDGET_TEMPORARY_ID
                    ),
                    'name' => 'Performance Max retail campaign budget #' .
                        Helper::getPrintableDatetime(),
                    // The budget period already defaults to DAILY.
                    'amount_micros' => 50000000,
                    'delivery_method' => BudgetDeliveryMethod::STANDARD,
                    // A Performance Max campaign cannot use a shared campaign budget.
                    'explicitly_shared' => false
                ])
            ])
        ]);
    }

    /**
     * Creates a MutateOperation that creates a new Performance Max campaign.
     *
     * A temporary ID will be assigned to this campaign so that it can
     * be referenced by other objects being created in the same Mutate request.
     *
     * @param int $customerId the customer ID
     * @param int $merchantCenterAccountId the Merchant Center account ID
     * @return MutateOperation the mutate operation that creates the campaign
     */
    private static function createPerformanceMaxCampaignOperation(
        int $customerId,
        int $merchantCenterAccountId
    ): MutateOperation {
        // Creates a mutate operation that creates a campaign operation.
        return new MutateOperation([
            'campaign_operation' => new CampaignOperation([
                'create' => new Campaign([
                    'name' => 'Performance Max retail campaign #' . Helper::getPrintableDatetime(),
                    // Assigns the resource name with a temporary ID.
                    'resource_name' => ResourceNames::forCampaign(
                        $customerId,
                        self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                    ),
                    // Sets the budget using the given budget resource name.
                    'campaign_budget' => ResourceNames::forCampaignBudget(
                        $customerId,
                        self::BUDGET_TEMPORARY_ID
                    ),
                    // The campaign is the only entity in the mutate request that should have its
                    // status set.
                    // Recommendation: Set the campaign to PAUSED when creating it to prevent
                    // the ads from immediately serving.
                    'status' => CampaignStatus::PAUSED,
                    // All Performance Max campaigns have an advertising_channel_type of
                    // PERFORMANCE_MAX. The advertising_channel_sub_type should not be set.
                    'advertising_channel_type' => AdvertisingChannelType::PERFORMANCE_MAX,

                    // Bidding strategy must be set directly on the campaign.
                    // Setting a portfolio bidding strategy by resource name is not supported.
                    // Max Conversion and Max Conversion Value are the only strategies supported
                    // for Performance Max campaigns.
                    // An optional ROAS (Return on Advertising Spend) can be set for
                    // maximize_conversion_value. The ROAS value must be specified as a ratio in
                    // the API. It is calculated by dividing "total value" by "total spend".
                    // For more information on Max Conversion Value, see the support article:
                    // http://support.google.com/google-ads/answer/7684216.
                    // A target_roas of 3.5 corresponds to a 350% return on ad spend.
                    'maximize_conversion_value' => new MaximizeConversionValue([
                        'target_roas' => 3.5
                    ]),
                    // Below is what you would use if you want to maximize conversions
                    // You can optionally set the 'target_cpa_micros' field on MaximizeConversions.
                    // This is the average amount that you would like to spend per conversion
                    // action.
                    // 'maximize_conversions' => new MaximizeConversions(),

                    // Sets the Final URL expansion opt out. This flag is specific to
                    // Performance Max campaigns. If opted out (true), only the final URLs in
                    // the asset group or URLs specified in the advertiser's Google Merchant
                    // Center or business data feeds are targeted.
                    //
                    // If opted in (false), the entire domain will be targeted. For best
                    // results, set this value to false to opt in and allow URL expansions. You
                    // can optionally add exclusions to limit traffic to parts of your website.
                    //
                    // For a Retail campaign, we want the final URL's to be limited to those
                    // explicitly surfaced via GMC.
                    'url_expansion_opt_out' => true,

                    // Sets the shopping settings.
                    'shopping_setting' => new ShoppingSetting([
                        'merchant_id' => $merchantCenterAccountId,
                        // Optional: To use products only from a specific feed, set feed_label to
                        // the feed label used in Merchant Center.
                        // See: https://support.google.com/merchants/answer/12453549.
                        // Removing the feed_label field will use products from all feeds.
                        // 'feed_label' => 'INSERT_FEED_LABEL_HERE'
                    ]),

                    // Optional fields.
                    'start_date' => date('Ymd', strtotime('+1 day')),
                    'end_date' => date('Ymd', strtotime('+365 days'))
                ])
            ])
        ]);
    }

    /**
     * Creates a list of MutateOperations that create new campaign criteria.
     *
     * @param int $customerId the customer ID
     * @return MutateOperation[] a list of MutateOperations that create the new campaign criteria
     */
    private static function createCampaignCriterionOperations(int $customerId): array
    {
        $operations = [];
        // Sets the LOCATION campaign criteria.
        // Target all of New York City except Brooklyn.
        // Location IDs are listed here:
        // https://developers.google.com/google-ads/api/reference/data/geotargets
        // and they can also be retrieved using the GeoTargetConstantService as shown
        // here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting
        $operations[] = new MutateOperation([
            'campaign_criterion_operation' => new CampaignCriterionOperation([
                'create' => new CampaignCriterion([
                    'campaign' => ResourceNames::forCampaign(
                        $customerId,
                        self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                    ),
                    'location' => new LocationInfo([
                        // Adds one positive location target for New York City (ID=1023191),
                        // specifically adding the positive criteria before the negative one.
                        'geo_target_constant' => ResourceNames::forGeoTargetConstant(1023191)
                    ]),
                    'negative' => false
                ])
            ])
        ]);

        // Next adds the negative target for Brooklyn.
        $operations[] = new MutateOperation([
            'campaign_criterion_operation' => new CampaignCriterionOperation([
                'create' => new CampaignCriterion([
                    'campaign' => ResourceNames::forCampaign(
                        $customerId,
                        self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                    ),
                    'location' => new LocationInfo([
                        // Next add the negative target for Brooklyn (ID=1022762).
                        'geo_target_constant' => ResourceNames::forGeoTargetConstant(1022762)
                    ]),
                    'negative' => true
                ])
            ])
        ]);

        // Sets the LANGUAGE campaign criterion.
        $operations[] = new MutateOperation([
            'campaign_criterion_operation' => new CampaignCriterionOperation([
                'create' => new CampaignCriterion([
                    'campaign' => ResourceNames::forCampaign(
                        $customerId,
                        self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                    ),
                    // Sets the language.
                    // For a list of all language codes, see:
                    // https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7
                    'language' => new LanguageInfo([
                        'language_constant' => ResourceNames::forLanguageConstant(1000)  // English
                    ])
                ])
            ])
        ]);

        return $operations;
    }

    /**
     * Creates multiple text assets and returns the list of resource names.
     *
     * These repeated assets must be created in a separate request prior to creating the campaign.
     *
     * @param GoogleAdsClient $googleAdsClient the Google Ads API client
     * @param int $customerId the customer ID
     * @param string[] $texts a list of strings, each of which will be used to create a text asset
     * @return string[] a list of asset resource names
     */
    private static function createMultipleTextAssets(
        GoogleAdsClient $googleAdsClient,
        int $customerId,
        array $texts
    ): array {
        // Here again, we use the GoogleAdService to create multiple text assets in a single
        // request.
        $operations = [];
        foreach ($texts as $text) {
            // Creates a mutate operation for a text asset.
            $operations[] = new MutateOperation([
                'asset_operation' => new AssetOperation([
                    'create' => new Asset(['text_asset' => new TextAsset(['text' => $text])])
                ])
            ]);
        }

        // Issues a mutate request to add all assets.
        $googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
        /** @var MutateGoogleAdsResponse $mutateGoogleAdsResponse */
        $mutateGoogleAdsResponse = $googleAdsServiceClient->mutate(
            MutateGoogleAdsRequest::build($customerId, $operations)
        );

        $assetResourceNames = [];
        foreach ($mutateGoogleAdsResponse->getMutateOperationResponses() as $response) {
            /** @var MutateOperationResponse $response */
            $assetResourceNames[] = $response->getAssetResult()->getResourceName();
        }
        self::printResponseDetails($mutateGoogleAdsResponse);

        return $assetResourceNames;
    }

    /**
     * Creates a MutateOperation that creates a new asset group.
     *
     * A temporary ID will be assigned to this asset group so that it can
     * be referenced by other objects being created in the same Mutate request.
     *
     * @param int $customerId the customer ID
     * @return MutateOperation a mutate operation creates a new asset group.
     */
    private static function createAssetGroupOperation(
        int $customerId,
        string $finalUrl
    ): MutateOperation {
        // Creates a new mutate operation that creates an asset group operation.
        return new MutateOperation([
            'asset_group_operation' => new AssetGroupOperation([
                'create' => new AssetGroup([
                    'resource_name' => ResourceNames::forAssetGroup(
                        $customerId,
                        self::ASSET_GROUP_TEMPORARY_ID
                    ),
                    'name' => 'Performance Max retail asset group #' .
                        Helper::getPrintableDatetime(),
                    'campaign' => ResourceNames::forCampaign(
                        $customerId,
                        self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                    ),
                    'final_urls' => [$finalUrl],
                    'final_mobile_urls' => [$finalUrl],
                    'status' => AssetGroupStatus::PAUSED
                ])
            ])
        ]);
    }

    /**
     * Creates a MutateOperation that creates a new asset group listing group filter.
     *
     * A temporary ID will be assigned to this listing group filter so that it can be referenced by
     * other objects being created in the same Mutate request.
     *
     * @param int $customerId the customer ID
     * @return MutateOperation a MutateOperation that creates a new asset group listing group filter
     */
    private static function createAssetGroupListingGroupFilterOperation(
        int $customerId
    ): MutateOperation {
        return new MutateOperation([
            'asset_group_listing_group_filter_operation'
            => new AssetGroupListingGroupFilterOperation([
                // Creates a new asset group listing group filter containing the "default"
                // listing group (All products).
                'create' => new AssetGroupListingGroupFilter([
                    'asset_group' => ResourceNames::forAssetGroup(
                        $customerId,
                        self::ASSET_GROUP_TEMPORARY_ID
                    ),
                    // Since this is the root node, do not set the 'parent_listing_group_filter'
                    // field. For all other nodes, this would refer to the parent listing group
                    // filter resource name.
                    //
                    // UNIT_INCLUDED means this node has no children.
                    'type' => ListingGroupFilterType::UNIT_INCLUDED,
                    // Because this is a Performance Max campaign for retail, we need to specify
                    // that this is in the shopping listing source.
                    'listing_source' => ListingGroupFilterListingSource::SHOPPING
                ])
            ])
        ]);
    }

    /**
     * Creates a list of MutateOperations that create new asset group asset and assets.
     *
     * A temporary ID will be assigned to this asset group so that it can
     * be referenced by other objects being created in the same mutate request.
     *
     * @param int $customerId the customer ID
     * @param string[] $headlineAssetResourceNames a list of headline resource names
     * @param string[] $descriptionAssetResourceNames a list of description resource names
     * @return MutateOperation[] a list of MutateOperations that create new asset group assets and
     *     assets
     */
    private static function createAssetandAssetGroupAssetOperations(
        int $customerId,
        array $headlineAssetResourceNames,
        array $descriptionAssetResourceNames
    ): array {
        $operations = [];
        // For the list of required assets for a Performance Max campaign, see
        // https://developers.google.com/google-ads/api/docs/performance-max/assets

        // An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
        // and providing:
        // -  the resource name of the AssetGroup
        // -  the resource name of the Asset
        // -  the field_type of the Asset in this AssetGroup.
        //
        // To learn more about AssetGroups, see
        // https://developers.google.com/google-ads/api/docs/performance-max/asset-groups.

        // Links the previously created multiple text assets.

        // Links the headline assets.
        foreach ($headlineAssetResourceNames as $resourceName) {
            $operations[] = new MutateOperation([
                'asset_group_asset_operation' => new AssetGroupAssetOperation([
                    'create' => new AssetGroupAsset([
                        'asset' => $resourceName,
                        'asset_group' => ResourceNames::forAssetGroup(
                            $customerId,
                            self::ASSET_GROUP_TEMPORARY_ID
                        ),
                        'field_type' => AssetFieldType::HEADLINE
                    ])
                ])
            ]);
        }
        // Links the description assets.
        foreach ($descriptionAssetResourceNames as $resourceName) {
            $operations[] = new MutateOperation([
                'asset_group_asset_operation' => new AssetGroupAssetOperation([
                    'create' => new AssetGroupAsset([
                        'asset' => $resourceName,
                        'asset_group' => ResourceNames::forAssetGroup(
                            $customerId,
                            self::ASSET_GROUP_TEMPORARY_ID
                        ),
                        'field_type' => AssetFieldType::DESCRIPTION
                    ])
                ])
            ]);
        }

        // Creates and links the long headline text asset.
        $operations = array_merge($operations, self::createAndLinkTextAsset(
            $customerId,
            'Travel the World',
            AssetFieldType::LONG_HEADLINE
        ));
        // Creates and links the business name text asset.
        $operations = array_merge($operations, self::createAndLinkTextAsset(
            $customerId,
            'Interplanetary Cruises',
            AssetFieldType::BUSINESS_NAME
        ));

        // Creates and links the image assets.

        // Creates and links the Logo Asset.
        $operations = array_merge($operations, self::createAndLinkImageAsset(
            $customerId,
            'https://gaagl.page.link/1Crm',
            AssetFieldType::LOGO,
            'Marketing Logo'
        ));
        // Creates and links the Marketing Image Asset.
        $operations = array_merge($operations, self::createAndLinkImageAsset(
            $customerId,
            'https://gaagl.page.link/Eit5',
            AssetFieldType::MARKETING_IMAGE,
            'Marketing Image'
        ));
        // Creates and links the Square Marketing Image Asset.
        $operations = array_merge($operations, self::createAndLinkImageAsset(
            $customerId,
            'https://gaagl.page.link/bjYi',
            AssetFieldType::SQUARE_MARKETING_IMAGE,
            'Square Marketing Image'
        ));

        // After being created the list must be sorted so that all asset operations come before all
        // the asset group asset operations, otherwise the API will reject the request.
        return self::sortAssetAndAssetGroupAssetOperations($operations);
    }

    /**
     * Creates a list of MutateOperations that create a new linked text asset.
     *
     * @param int $customerId the customer ID
     * @param string $text the text of the asset to be created
     * @param int $fieldType the field type of the new asset in the AssetGroupAsset
     * @return MutateOperation[] a list of MutateOperations that create a new linked text asset
     */
    private static function createAndLinkTextAsset(
        int $customerId,
        string $text,
        int $fieldType
    ): array {
        $operations = [];
        // Creates a new mutate operation that creates a text asset.
        $operations[] = new MutateOperation([
            'asset_operation' => new AssetOperation([
                'create' => new Asset([
                    'resource_name' => ResourceNames::forAsset($customerId, self::$nextTempId),
                    'text_asset' => new TextAsset(['text' => $text])
                ])
            ])
        ]);

        // Creates an asset group asset to link the asset to the asset group.
        $operations[] = new MutateOperation([
            'asset_group_asset_operation' => new AssetGroupAssetOperation([
                'create' => new AssetGroupAsset([
                    'asset' => ResourceNames::forAsset($customerId, self::$nextTempId),
                    'asset_group' => ResourceNames::forAssetGroup(
                        $customerId,
                        self::ASSET_GROUP_TEMPORARY_ID
                    ),
                    'field_type' => $fieldType
                ])
            ])
        ]);
        self::$nextTempId--;

        return $operations;
    }

    /**
     * Creates a list of MutateOperations that create a new linked image asset.
     *
     * @param int $customerId the customer ID
     * @param string $url the URL of the image to be retrieved and put into an asset
     * @param int $fieldType the field type of the new asset in the AssetGroupAsset
     * @param string $assetName the asset name
     * @return MutateOperation[] a list of MutateOperations that create a new linked image asset
     */
    private static function createAndLinkImageAsset(
        int $customerId,
        string $url,
        int $fieldType,
        string $assetName
    ): array {
        $operations = [];
        // Creates a new mutate operation that creates an image asset.
        $operations[] = new MutateOperation([
            'asset_operation' => new AssetOperation([
                'create' => new Asset([
                    'resource_name' => ResourceNames::forAsset($customerId, self::$nextTempId),
                    // Provide a unique friendly name to identify your asset.
                    // When there is an existing image asset with the same content but a different
                    // name, the new name will be dropped silently.
                    'name' => $assetName,
                    'image_asset' => new ImageAsset(['data' => file_get_contents($url)])
                ])
            ])
        ]);

        // Creates an asset group asset to link the asset to the asset group.
        $operations[] = new MutateOperation([
            'asset_group_asset_operation' => new AssetGroupAssetOperation([
                'create' => new AssetGroupAsset([
                    'asset' => ResourceNames::forAsset($customerId, self::$nextTempId),
                    'asset_group' => ResourceNames::forAssetGroup(
                        $customerId,
                        self::ASSET_GROUP_TEMPORARY_ID
                    ),
                    'field_type' => $fieldType
                ])
            ])
        ]);
        self::$nextTempId--;

        return $operations;
    }

    /**
     * Sorts a list of asset and asset group asset operations. This sorts the list such that all
     * asset operations precede all asset group asset operations. If asset group assets are created
     * before assets then an error will be returned by the API.
     *
     * @param MutateOperation[] $operations a list of asset and asset group asset mutate operations
     * @return MutateOperation[] a sorted list of asset and asset group asset mutate operations
     */
    private static function sortAssetAndAssetGroupAssetOperations(array $operations): array
    {
        usort(
            $operations,
            function (MutateOperation $operation1, MutateOperation $operation2) {
                if (!is_null($operation1->getAssetOperation())) {
                    return -1;
                } elseif (!is_null($operation1->getAssetOperation())) {
                    return 0;
                } else {
                    return 1;
                }
            }
        );
        return $operations;
    }


    /**
     * Retrieves the list of customer conversion goals.
     *
     * @param GoogleAdsClient $googleAdsClient the Google Ads API client
     * @param int $customerId the customer ID
     * @return array list of dicts containing the category and origin of customer conversion goals
     */
    private static function getCustomerConversionGoals(
        GoogleAdsClient $googleAdsClient,
        int $customerId
    ): array {
        $customerConversionGoals = [];
        $googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
        // Creates a query that retrieves all customer conversion goals.
        $query = 'SELECT customer_conversion_goal.category, customer_conversion_goal.origin ' .
            'FROM customer_conversion_goal';
        // The number of conversion goals is typically less than 50 so we use a search request
        // instead of search stream.
        $response =
            $googleAdsServiceClient->search(SearchGoogleAdsRequest::build($customerId, $query));

        // Iterates over all rows in all pages and builds the list of conversion goals.
        foreach ($response->iterateAllElements() as $googleAdsRow) {
            /** @var GoogleAdsRow $googleAdsRow */
            $customerConversionGoals[] = [
                'category' => $googleAdsRow->getCustomerConversionGoal()->getCategory(),
                'origin' => $googleAdsRow->getCustomerConversionGoal()->getOrigin()
            ];
        }

        return $customerConversionGoals;
    }

    /**
     * Creates a list of MutateOperations that override customer conversion goals.
     *
     * @param int $customerId the customer ID
     * @param array $customerConversionGoals the list of customer conversion goals that will be
     *      overridden
     * @return MutateOperation[] a list of MutateOperations that update campaign conversion goals
     */
    private static function createConversionGoalOperations(
        int $customerId,
        array $customerConversionGoals
    ): array {
        $operations = [];

        // To override the customer conversion goals, we will change the biddability of each of the
        // customer conversion goals so that only the desired conversion goal is biddable in this
        // campaign.
        foreach ($customerConversionGoals as $customerConversionGoal) {
            $campaignConversionGoal = new CampaignConversionGoal([
                'resource_name' => ResourceNames::forCampaignConversionGoal(
                    $customerId,
                    self::PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID,
                    ConversionActionCategory::name($customerConversionGoal['category']),
                    ConversionOrigin::name($customerConversionGoal['origin'])
                )
            ]);
            // Changes the biddability for the campaign conversion goal.
            // Sets biddability to true for the desired (category, origin).
            // Sets biddability to false for all other conversion goals.
            // Note:
            //  1- It is assumed that this Conversion Action
            //     (category=PURCHASE, origin=WEBSITE) exists in this account.
            //  2- More than one goal can be biddable if desired. This example
            //     shows only one.
            if (
                $customerConversionGoal["category"] === ConversionActionCategory::PURCHASE
                && $customerConversionGoal["origin"] === ConversionOrigin::WEBSITE
            ) {
                $campaignConversionGoal->setBiddable(true);
            } else {
                $campaignConversionGoal->setBiddable(false);
            }

            $operations[] = new MutateOperation([
                'campaign_conversion_goal_operation' => new CampaignConversionGoalOperation([
                    'update' => $campaignConversionGoal,
                    // Sets the update mask on the operation. Here the update mask will be a list
                    // of all the fields that were set on the update object.
                    'update_mask' => FieldMasks::allSetFieldsOf($campaignConversionGoal)
                ])
            ]);
        }

        return $operations;
    }

    /**
     * Prints the details of a MutateGoogleAdsResponse. Parses the "response" oneof field name and
     * uses it to extract the new entity's name and resource name.
     *
     * @param MutateGoogleAdsResponse $mutateGoogleAdsResponse the mutate Google Ads response
     */
    private static function printResponseDetails(
        MutateGoogleAdsResponse $mutateGoogleAdsResponse
    ): void {
        foreach ($mutateGoogleAdsResponse->getMutateOperationResponses() as $response) {
            /** @var MutateOperationResponse $response */
            $getter = Serializer::getGetter($response->getResponse());
            printf(
                "Created a(n) %s with '%s'.%s",
                preg_replace(
                    '/Result$/',
                    '',
                    ucfirst(Serializer::toCamelCase($response->getResponse()))
                ),
                $response->$getter()->getResourceName(),
                PHP_EOL
            );
        }
    }
}

AddPerformanceMaxRetailCampaign::main();
AddPerformanceMaxRetailCampaign.php
      

Python

#!/usr/bin/env python
# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This example shows how to create a Performance Max retail campaign.

This will be created for "All products".

For more information about Performance Max retail campaigns, see
https://developers.google.com/google-ads/api/docs/performance-max/retail

Prerequisites:
- You need to have access to a Merchant Center account. You can find
  instructions to create a Merchant Center account here:
  https://support.google.com/merchants/answer/188924.
  This account must be linked to your Google Ads account. The integration
  instructions can be found at:
  https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center
- You need your Google Ads account to track conversions. The different ways
  to track conversions can be found here:
  https://support.google.com/google-ads/answer/1722054.
- You must have at least one conversion action in the account. For
  more about conversion actions, see
  https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions
"""


import argparse
from datetime import datetime, timedelta
import sys
from uuid import uuid4

from google.api_core import protobuf_helpers
from google.ads.googleads.client import GoogleAdsClient
from google.ads.googleads.errors import GoogleAdsException
from google.ads.googleads.util import convert_snake_case_to_upper_case

import requests


# We specify temporary IDs that are specific to a single mutate request.
# Temporary IDs are always negative and unique within one mutate request.
#
# See https://developers.google.com/google-ads/api/docs/mutating/best-practices
# for further details.
#
# These temporary IDs are fixed because they are used in multiple places.
_BUDGET_TEMPORARY_ID = "-1"
_PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID = "-2"
_ASSET_GROUP_TEMPORARY_ID = "-3"

# There are also entities that will be created in the same request but do not
# need to be fixed temporary IDs because they are referenced only once.
_next_temp_id = int(_ASSET_GROUP_TEMPORARY_ID) - 1


def main(
    client,
    customer_id,
    merchant_center_account_id,
    final_url,
):
    """The main method that creates all necessary entities for the example.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        merchant_center_account_id: The Merchant Center account ID.
        final_url: the final URL.
    """
    googleads_service = client.get_service("GoogleAdsService")

    # This campaign will override the customer conversion goals.
    # Retrieve the current list of customer conversion goals.
    customer_conversion_goals = get_customer_conversion_goals(
        client, customer_id
    )

    # Performance Max campaigns require that repeated assets such as headlines
    # and descriptions be created before the campaign.
    # For the list of required assets for a Performance Max campaign, see
    # https://developers.google.com/google-ads/api/docs/performance-max/assets
    #
    # Create the headlines.
    headline_asset_resource_names = create_multiple_text_assets(
        client,
        customer_id,
        [
            "Travel",
            "Travel Reviews",
            "Book travel",
        ],
    )
    # Create the descriptions.
    description_asset_resource_names = create_multiple_text_assets(
        client,
        customer_id,
        [
            "Take to the air!",
            "Fly to the sky!",
        ],
    )

    # The below methods create and return MutateOperations that we later
    # provide to the GoogleAdsService.Mutate method in order to create the
    # entities in a single request. Since the entities for a Performance Max
    # campaign are closely tied to one-another, it's considered a best practice
    # to create them in a single Mutate request so they all complete
    # successfully or fail entirely, leaving no orphaned entities. See:
    # https://developers.google.com/google-ads/api/docs/mutating/overview
    campaign_budget_operation = create_campaign_budget_operation(
        client,
        customer_id,
    )
    performance_max_campaign_operation = (
        create_performance_max_campaign_operation(
            client,
            customer_id,
            merchant_center_account_id,
        )
    )
    campaign_criterion_operations = create_campaign_criterion_operations(
        client,
        customer_id,
    )
    asset_group_operation = create_asset_group_operation(
        client, customer_id, final_url
    )
    listing_group_filter_operation = create_listing_group_filter_operation(
        client, customer_id
    )
    asset_and_asset_group_asset_operations = (
        create_asset_and_asset_group_asset_operations(
            client,
            customer_id,
            headline_asset_resource_names,
            description_asset_resource_names,
        )
    )
    conversion_goal_operations = create_conversion_goal_operations(
        client,
        customer_id,
        customer_conversion_goals,
    )

    # Send the operations in a single Mutate request.
    response = googleads_service.mutate(
        customer_id=customer_id,
        mutate_operations=[
            # It's important to create these entities in this order because
            # they depend on each other.
            campaign_budget_operation,
            performance_max_campaign_operation,
            # Expand the list of multiple operations into the list of
            # other mutate operations.
            *campaign_criterion_operations,
            asset_group_operation,
            listing_group_filter_operation,
            *asset_and_asset_group_asset_operations,
            *conversion_goal_operations,
        ],
    )
    print_response_details(response)


def create_campaign_budget_operation(
    client,
    customer_id,
):
    """Creates a MutateOperation that creates a new CampaignBudget.

    A temporary ID will be assigned to this campaign budget so that it can be
    referenced by other objects being created in the same Mutate request.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.

    Returns:
        a MutateOperation that creates a CampaignBudget.
    """
    mutate_operation = client.get_type("MutateOperation")
    campaign_budget_operation = mutate_operation.campaign_budget_operation
    campaign_budget = campaign_budget_operation.create
    campaign_budget.name = f"Performance Max retail campaign budget #{uuid4()}"
    # The budget period already defaults to DAILY.
    campaign_budget.amount_micros = 50000000
    campaign_budget.delivery_method = (
        client.enums.BudgetDeliveryMethodEnum.STANDARD
    )
    # A Performance Max campaign cannot use a shared campaign budget.
    campaign_budget.explicitly_shared = False

    # Set a temporary ID in the budget's resource name so it can be referenced
    # by the campaign in later steps.
    campaign_budget.resource_name = client.get_service(
        "CampaignBudgetService"
    ).campaign_budget_path(customer_id, _BUDGET_TEMPORARY_ID)

    return mutate_operation


def create_performance_max_campaign_operation(
    client,
    customer_id,
    merchant_center_account_id,
):
    """Creates a MutateOperation that creates a new Performance Max campaign.

    A temporary ID will be assigned to this campaign so that it can
    be referenced by other objects being created in the same Mutate request.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        merchant_center_account_id: The Merchant Center account ID.

    Returns:
        a MutateOperation that creates a campaign.
    """
    mutate_operation = client.get_type("MutateOperation")
    campaign = mutate_operation.campaign_operation.create
    campaign.name = f"Performance Max retail campaign #{uuid4()}"
    # Set the campaign status as PAUSED. The campaign is the only entity in
    # the mutate request that should have its status set.
    campaign.status = client.enums.CampaignStatusEnum.PAUSED
    # All Performance Max campaigns have an advertising_channel_type of
    # PERFORMANCE_MAX. The advertising_channel_sub_type should not be set.
    campaign.advertising_channel_type = (
        client.enums.AdvertisingChannelTypeEnum.PERFORMANCE_MAX
    )
    # Bidding strategy must be set directly on the campaign.
    # Setting a portfolio bidding strategy by resource name is not supported.
    # Max Conversion and Max Conversion Value are the only strategies supported
    # for Performance Max campaigns.
    # An optional ROAS (Return on Advertising Spend) can be set for
    # maximize_conversion_value. The ROAS value must be specified as a ratio in
    # the API. It is calculated by dividing "total value" by "total spend".
    # For more information on Max Conversion Value, see the support article:
    # http://support.google.com/google-ads/answer/7684216.
    # A target_roas of 3.5 corresponds to a 350% return on ad spend.
    # campaign.maximize_conversion_value.target_roas = 3.5
    # For first time users, it's recommended not to set a target ROAS.
    # Although target ROAS is optional, you still need to define it
    # even if you do not want to use it.
    campaign.maximize_conversion_value.target_roas = None
    # Below is what you would use if you want to maximize conversions
    # campaign.maximize_conversions.target_cpa_micros = None
    # The target CPA is optional. This is the average amount that you would
    # like to spend per conversion action.

    # Set the shopping settings.
    campaign.shopping_setting.merchant_id = merchant_center_account_id

    # Optional: To use products only from a specific feed, set
    # shopping_setting.feed_label to the feed label used in Merchant Center.
    # See: https://support.google.com/merchants/answer/12453549.
    # Omitting the shopping_setting.feed_label field will use products from all
    # feeds.
    # campaign.shopping_setting.feed_label = "INSERT_FEED_LABEL_HERE"

    # Set the Final URL expansion opt out. This flag is specific to
    # Performance Max campaigns. If opted out (True), only the final URLs in
    # the asset group or URLs specified in the advertiser's Google Merchant
    # If opted in (False), the entire domain will be targeted. For best
    # results, set this value to false to opt in and allow URL expansions. You
    # can optionally add exclusions to limit traffic to parts of your website.
    # For a Retail campaign, we want the final URL's to be limited to
    # those explicitly surfaced via GMC.
    campaign.url_expansion_opt_out = True

    # Assign the resource name with a temporary ID.
    campaign_service = client.get_service("CampaignService")
    campaign.resource_name = campaign_service.campaign_path(
        customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
    )
    # Set the budget using the given budget resource name.
    campaign.campaign_budget = campaign_service.campaign_budget_path(
        customer_id, _BUDGET_TEMPORARY_ID
    )

    # Optional fields
    campaign.start_date = (datetime.now() + timedelta(1)).strftime("%Y%m%d")
    campaign.end_date = (datetime.now() + timedelta(365)).strftime("%Y%m%d")

    return mutate_operation


def create_campaign_criterion_operations(
    client,
    customer_id,
):
    """Creates a list of MutateOperations that create new campaign criteria.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.

    Returns:
        a list of MutateOperations that create new campaign criteria.
    """
    campaign_service = client.get_service("CampaignService")
    geo_target_constant_service = client.get_service("GeoTargetConstantService")
    googleads_service = client.get_service("GoogleAdsService")

    operations = []
    # Set the LOCATION campaign criteria.
    # Target all of New York City except Brooklyn.
    # Location IDs are listed here:
    # https://developers.google.com/google-ads/api/reference/data/geotargets
    # and they can also be retrieved using the GeoTargetConstantService as shown
    # here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting
    mutate_operation = client.get_type("MutateOperation")
    campaign_criterion = mutate_operation.campaign_criterion_operation.create
    campaign_criterion.campaign = campaign_service.campaign_path(
        customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
    )
    # Adds one positive location target for New York City (ID=1023191),
    # specifically adding the positive criteria before the negative one.
    campaign_criterion.location.geo_target_constant = (
        geo_target_constant_service.geo_target_constant_path("1023191")
    )
    campaign_criterion.negative = False
    operations.append(mutate_operation)

    # Next add the negative target for Brooklyn (ID=1022762).
    mutate_operation = client.get_type("MutateOperation")
    campaign_criterion = mutate_operation.campaign_criterion_operation.create
    campaign_criterion.campaign = campaign_service.campaign_path(
        customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
    )
    campaign_criterion.location.geo_target_constant = (
        geo_target_constant_service.geo_target_constant_path("1022762")
    )
    campaign_criterion.negative = True
    operations.append(mutate_operation)

    # Set the LANGUAGE campaign criterion.
    mutate_operation = client.get_type("MutateOperation")
    campaign_criterion = mutate_operation.campaign_criterion_operation.create
    campaign_criterion.campaign = campaign_service.campaign_path(
        customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
    )
    # Set the language.
    # For a list of all language codes, see:
    # https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7
    campaign_criterion.language.language_constant = (
        googleads_service.language_constant_path("1000")
    )  # English
    operations.append(mutate_operation)

    return operations


def create_multiple_text_assets(client, customer_id, texts):
    """Creates multiple text assets and returns the list of resource names.

    These repeated assets must be created in a separate request prior to
    creating the campaign.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        texts: a list of strings, each of which will be used to create a text
          asset.

    Returns:
        asset_resource_names: a list of asset resource names.
    """
    # Here again we use the GoogleAdService to create multiple text
    # assets in a single request.
    googleads_service = client.get_service("GoogleAdsService")

    operations = []
    for text in texts:
        mutate_operation = client.get_type("MutateOperation")
        asset = mutate_operation.asset_operation.create
        asset.text_asset.text = text
        operations.append(mutate_operation)

    # Send the operations in a single Mutate request.
    response = googleads_service.mutate(
        customer_id=customer_id,
        mutate_operations=operations,
    )
    asset_resource_names = []
    for result in response.mutate_operation_responses:
        if result._pb.HasField("asset_result"):
            asset_resource_names.append(result.asset_result.resource_name)
    print_response_details(response)
    return asset_resource_names


def create_asset_group_operation(client, customer_id, final_url):
    """Creates a MutateOperation that creates a new asset group.

    A temporary ID will be assigned to this asset group so that it can
    be referenced by other objects being created in the same Mutate request.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        final_url: the final URL.

    Returns:
        a MutateOperation that creates a new asset group.
    """
    googleads_service = client.get_service("GoogleAdsService")
    # Create the AssetGroup.
    mutate_operation = client.get_type("MutateOperation")
    asset_group = mutate_operation.asset_group_operation.create
    asset_group.name = f"Performance Max retail asset group #{uuid4()}"
    asset_group.campaign = googleads_service.campaign_path(
        customer_id, _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
    )
    asset_group.final_urls.append(final_url)
    asset_group.final_mobile_urls.append(final_url)
    asset_group.status = client.enums.AssetGroupStatusEnum.PAUSED
    asset_group.resource_name = googleads_service.asset_group_path(
        customer_id,
        _ASSET_GROUP_TEMPORARY_ID,
    )

    return mutate_operation


def create_listing_group_filter_operation(client, customer_id):
    """Creates a MutateOperation that creates a new listing group filter.

    A temporary ID will be assigned to this listing group filter so that it
    can be referenced by other objects being created in the same Mutate request.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.

    Returns:
        a MutateOperation that creates a new listing group filter.
    """
    googleads_service = client.get_service("GoogleAdsService")
    # Creates a new ad group criterion containing the "default" listing
    # group (All products).
    mutate_operation = client.get_type("MutateOperation")
    asset_group_listing_group = (
        mutate_operation.asset_group_listing_group_filter_operation.create
    )
    asset_group_listing_group.asset_group = googleads_service.asset_group_path(
        customer_id,
        _ASSET_GROUP_TEMPORARY_ID,
    )
    asset_group_listing_group.type_ = (
        client.enums.ListingGroupFilterTypeEnum.UNIT_INCLUDED
    )
    # Because this is a Performance Max campaign for retail, we need to specify
    # that this is in the shopping listing source.
    asset_group_listing_group.listing_source = (
        client.enums.ListingGroupFilterListingSourceEnum.SHOPPING
    )

    return mutate_operation


def create_asset_and_asset_group_asset_operations(
    client,
    customer_id,
    headline_asset_resource_names,
    description_asset_resource_names,
):
    """Creates a list of MutateOperations that create a new asset_group.

    A temporary ID will be assigned to this asset group so that it can
    be referenced by other objects being created in the same Mutate request.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        headline_asset_resource_names: a list of headline resource names.
        description_asset_resource_names: a list of description resource names.

    Returns:
        MutateOperations that create a new asset group and related assets.
    """
    asset_group_service = client.get_service("AssetGroupService")

    operations = []

    # For the list of required assets for a Performance Max campaign, see
    # https://developers.google.com/google-ads/api/docs/performance-max/assets

    # An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
    # and providing:
    #   the resource name of the AssetGroup
    #   the resource name of the Asset
    #   the field_type of the Asset in this AssetGroup.
    #
    # To learn more about AssetGroups, see
    # https://developers.google.com/google-ads/api/docs/performance-max/asset-groups

    # Link the previously created multiple text assets.

    # Link the headline assets.
    for resource_name in headline_asset_resource_names:
        mutate_operation = client.get_type("MutateOperation")
        asset_group_asset = mutate_operation.asset_group_asset_operation.create
        asset_group_asset.field_type = client.enums.AssetFieldTypeEnum.HEADLINE
        asset_group_asset.asset_group = asset_group_service.asset_group_path(
            customer_id,
            _ASSET_GROUP_TEMPORARY_ID,
        )
        asset_group_asset.asset = resource_name
        operations.append(mutate_operation)

    #  Link the description assets.
    for resource_name in description_asset_resource_names:
        mutate_operation = client.get_type("MutateOperation")
        asset_group_asset = mutate_operation.asset_group_asset_operation.create
        asset_group_asset.field_type = (
            client.enums.AssetFieldTypeEnum.DESCRIPTION
        )
        asset_group_asset.asset_group = asset_group_service.asset_group_path(
            customer_id,
            _ASSET_GROUP_TEMPORARY_ID,
        )
        asset_group_asset.asset = resource_name
        operations.append(mutate_operation)

    # Create and link the long headline text asset.
    mutate_operations = create_and_link_text_asset(
        client,
        customer_id,
        "Travel the World",
        client.enums.AssetFieldTypeEnum.LONG_HEADLINE,
    )
    operations.extend(mutate_operations)

    # Create and link the business name text asset.
    mutate_operations = create_and_link_text_asset(
        client,
        customer_id,
        "Interplanetary Cruises",
        client.enums.AssetFieldTypeEnum.BUSINESS_NAME,
    )
    operations.extend(mutate_operations)

    # Create and link the image assets.

    # Create and link the Logo Asset.
    mutate_operations = create_and_link_image_asset(
        client,
        customer_id,
        "https://gaagl.page.link/1Crm",
        client.enums.AssetFieldTypeEnum.LOGO,
        "Logo Image",
    )
    operations.extend(mutate_operations)

    # Create and link the Marketing Image Asset.
    mutate_operations = create_and_link_image_asset(
        client,
        customer_id,
        "https://gaagl.page.link/Eit5",
        client.enums.AssetFieldTypeEnum.MARKETING_IMAGE,
        "Marketing Image",
    )
    operations.extend(mutate_operations)

    # Create and link the Square Marketing Image Asset.
    mutate_operations = create_and_link_image_asset(
        client,
        customer_id,
        "https://gaagl.page.link/bjYi",
        client.enums.AssetFieldTypeEnum.SQUARE_MARKETING_IMAGE,
        "Square Marketing Image",
    )
    operations.extend(mutate_operations)

    # After being created the list must be sorted so that all asset
    # operations come before all the asset group asset operations,
    # otherwise the API will reject the request.
    return sort_asset_and_asset_group_asset_operations(operations)


def create_and_link_text_asset(client, customer_id, text, field_type):
    """Creates a list of MutateOperations that create a new linked text asset.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        text: the text of the asset to be created.
        field_type: the field_type of the new asset in the AssetGroupAsset.

    Returns:
        MutateOperations that create a new linked text asset.
    """
    global _next_temp_id
    operations = []
    asset_service = client.get_service("AssetService")
    asset_group_service = client.get_service("AssetGroupService")

    # Create the Text Asset.
    mutate_operation = client.get_type("MutateOperation")
    asset = mutate_operation.asset_operation.create
    asset.resource_name = asset_service.asset_path(customer_id, _next_temp_id)
    asset.text_asset.text = text
    operations.append(mutate_operation)

    # Create an AssetGroupAsset to link the Asset to the AssetGroup.
    mutate_operation = client.get_type("MutateOperation")
    asset_group_asset = mutate_operation.asset_group_asset_operation.create
    asset_group_asset.field_type = field_type
    asset_group_asset.asset_group = asset_group_service.asset_group_path(
        customer_id,
        _ASSET_GROUP_TEMPORARY_ID,
    )
    asset_group_asset.asset = asset_service.asset_path(
        customer_id, _next_temp_id
    )
    operations.append(mutate_operation)

    _next_temp_id -= 1
    return operations


def create_and_link_image_asset(
    client, customer_id, url, field_type, asset_name
):
    """Creates a list of MutateOperations that create a new linked image asset.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        url: the url of the image to be retrieved and put into an asset.
        field_type: the field_type of the new asset in the AssetGroupAsset.
        asset_name: the asset name.

    Returns:
        MutateOperations that create a new linked image asset.
    """
    global _next_temp_id
    operations = []
    asset_service = client.get_service("AssetService")
    asset_group_service = client.get_service("AssetGroupService")

    # Create the Image Asset.
    mutate_operation = client.get_type("MutateOperation")
    asset = mutate_operation.asset_operation.create
    asset.resource_name = asset_service.asset_path(customer_id, _next_temp_id)
    asset.type_ = client.enums.AssetTypeEnum.IMAGE
    # Provide a unique friendly name to identify your asset.
    # When there is an existing image asset with the same content but a different
    # name, the new name will be dropped silently.
    asset.name = asset_name
    asset.image_asset.data = get_image_bytes(url)
    operations.append(mutate_operation)

    # Create an AssetGroupAsset to link the Asset to the AssetGroup.
    mutate_operation = client.get_type("MutateOperation")
    asset_group_asset = mutate_operation.asset_group_asset_operation.create
    asset_group_asset.field_type = field_type
    asset_group_asset.asset_group = asset_group_service.asset_group_path(
        customer_id,
        _ASSET_GROUP_TEMPORARY_ID,
    )
    asset_group_asset.asset = asset_service.asset_path(
        customer_id, _next_temp_id
    )
    operations.append(mutate_operation)

    _next_temp_id -= 1
    return operations


def sort_asset_and_asset_group_asset_operations(operations):
    """Sorts a list of asset and asset group asset operations.

    This sorts the list such that all asset operations precede
    all asset group asset operations. If asset group assets are
    created before assets then an error will be returned by
    the API.

    Args:
        operations: a list of asset and asset group asset operations.

    Returns:
        a sorted list of asset and asset group asset operations.
    """

    def sorter(operation):
        """Determines whether the operation creates an asset group asset.

        Args:
            operation: a MutateOperation instance.

        Returns:
            True if the MutateOperation creates an asset group asset.
        """
        return bool(operation.asset_group_asset_operation)

    return sorted(operations, key=sorter)


def get_customer_conversion_goals(client, customer_id):
    """Retrieves the list of customer conversion goals.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.

    Returns:
        a list of dicts containing the category and origin of customer
        conversion goals.
    """
    ga_service = client.get_service("GoogleAdsService")
    customer_conversion_goals = []
    query = """
            SELECT
              customer_conversion_goal.category,
              customer_conversion_goal.origin
            FROM customer_conversion_goal
            """
    # The number of conversion goals is typically less than 50 so we use
    # GoogleAdsService.search instead of search_stream.
    search_request = client.get_type("SearchGoogleAdsRequest")
    search_request.customer_id = customer_id
    search_request.query = query
    results = ga_service.search(request=search_request)

    # Iterate over the results and build the list of conversion goals.
    for row in results:
        customer_conversion_goals.append(
            {
                "category": row.customer_conversion_goal.category,
                "origin": row.customer_conversion_goal.origin,
            }
        )
    return customer_conversion_goals


def create_conversion_goal_operations(
    client,
    customer_id,
    customer_conversion_goals,
):
    """Creates a list of MutateOperations that override customer conversion goals.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        customer_conversion_goals: the list of customer conversion goals that
          will be overridden.

    Returns:
        MutateOperations that update campaign conversion goals.
    """
    campaign_conversion_goal_service = client.get_service(
        "CampaignConversionGoalService"
    )
    operations = []

    # To override the customer conversion goals, we will change the
    # biddability of each of the customer conversion goals so that only
    # the desired conversion goal is biddable in this campaign.
    for customer_conversion_goal in customer_conversion_goals:
        mutate_operation = client.get_type("MutateOperation")
        campaign_conversion_goal = (
            mutate_operation.campaign_conversion_goal_operation.update
        )

        campaign_conversion_goal.resource_name = (
            campaign_conversion_goal_service.campaign_conversion_goal_path(
                customer_id,
                _PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID,
                customer_conversion_goal["category"].name,
                customer_conversion_goal["origin"].name,
            )
        )
        # Change the biddability for the campaign conversion goal.
        # Set biddability to True for the desired (category, origin).
        # Set biddability to False for all other conversion goals.
        # Note:
        #  1- It is assumed that this Conversion Action
        #     (category=PURCHASE, origin=WEBSITE) exists in this account.
        #  2- More than one goal can be biddable if desired. This example
        #     shows only one.
        if (
            customer_conversion_goal["category"]
            == client.enums.ConversionActionCategoryEnum.PURCHASE
            and customer_conversion_goal["origin"]
            == client.enums.ConversionOriginEnum.WEBSITE
        ):
            biddable = True
        else:
            biddable = False
        campaign_conversion_goal.biddable = biddable
        field_mask = protobuf_helpers.field_mask(
            None, campaign_conversion_goal._pb
        )
        client.copy_from(
            mutate_operation.campaign_conversion_goal_operation.update_mask,
            field_mask,
        )
        operations.append(mutate_operation)

    return operations


def get_image_bytes(url):
    """Loads image data from a URL.

    Args:
        url: a URL str.

    Returns:
        Images bytes loaded from the given URL.
    """
    response = requests.get(url)
    return response.content


def print_response_details(response):
    """Prints the details of a MutateGoogleAdsResponse.

    Parses the "response" oneof field name and uses it to extract the new
    entity's name and resource name.

    Args:
        response: a MutateGoogleAdsResponse object.
    """
    # Parse the Mutate response to print details about the entities that
    # were created by the request.
    suffix = "_result"
    for result in response.mutate_operation_responses:
        for field_descriptor, value in result._pb.ListFields():
            if field_descriptor.name.endswith(suffix):
                name = field_descriptor.name[: -len(suffix)]
            else:
                name = field_descriptor.name
            print(
                f"Created a(n) {convert_snake_case_to_upper_case(name)} with "
                f"{str(value).strip()}."
            )



if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        description=("Creates a Performance Max retail campaign.")
    )
    # The following argument(s) should be provided to run the example.
    parser.add_argument(
        "-c",
        "--customer_id",
        type=str,
        required=True,
        help="The Google Ads customer ID.",
    )
    parser.add_argument(
        "-m",
        "--merchant_center_account_id",
        type=int,
        required=True,
        help="The Merchant Center account ID.",
    )
    parser.add_argument(
        "-u",
        "--final_url",
        type=str,
        required=False,
        default="http://www.example.com",
        help="The final URL for the asset group of the campaign.",
    )

    args = parser.parse_args()

    # GoogleAdsClient will read the google-ads.yaml configuration file in the
    # home directory if none is specified.
    googleads_client = GoogleAdsClient.load_from_storage(version="v18")

    try:
        main(
            googleads_client,
            args.customer_id,
            args.merchant_center_account_id,
            args.final_url,
        )
    except GoogleAdsException as ex:
        print(
            f'Request with ID "{ex.request_id}" failed with status '
            f'"{ex.error.code().name}" and includes the following errors:'
        )
        for error in ex.failure.errors:
            print(f'Error with message "{error.message}".')
            if error.location:
                for field_path_element in error.location.field_path_elements:
                    print(f"\t\tOn field: {field_path_element.field_name}")
        sys.exit(1)
add_performance_max_retail_campaign.py
      

Ruby

#!/usr/bin/env ruby
# Encoding: utf-8
#
# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This example shows how to create a Performance Max retail campaign.
#
# This will be created for "All products".
#
# For more information about Performance Max retail campaigns, see
# https://developers.google.com/google-ads/api/docs/performance-max/retail
#
# Prerequisites:
# - You need to have access to a Merchant Center account. You can find
#   instructions to create a Merchant Center account here:
#   https://support.google.com/merchants/answer/188924.
#   This account must be linked to your Google Ads account. The integration
#   instructions can be found at:
#   https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center
# - You need your Google Ads account to track conversions. The different ways
#   to track conversions can be found here:
#   https://support.google.com/google-ads/answer/1722054.
# - You must have at least one conversion action in the account. For
#   more about conversion actions, see
#   https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions


require 'optparse'
require 'date'
require 'open-uri'
require 'google/ads/google_ads'

# We specify temporary IDs that are specific to a single mutate request.
# Temporary IDs are always negative and unique within one mutate request.
#
# See https://developers.google.com/google-ads/api/docs/mutating/best-practices
# for further details.
#
# These temporary IDs are fixed because they are used in multiple places.
BUDGET_TEMPORARY_ID = "-1"
PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID = "-2"
ASSET_GROUP_TEMPORARY_ID = "-3"

# There are also entities that will be created in the same request but do not
# need to be fixed temporary IDs because they are referenced only once.
def next_temp_id
  @id ||= ASSET_GROUP_TEMPORARY_ID.to_i
  @id -= 1
end

def add_performance_max_retail_campaign(
    customer_id,
    merchant_center_account_id,
    final_url)
  # GoogleAdsClient will read a config file from
  # ENV['HOME']/google_ads_config.rb when called without parameters
  client = Google::Ads::GoogleAds::GoogleAdsClient.new

  # This campaign will override the customer conversion goals.
  # Retrieve the current list of customer conversion goals.
  customer_conversion_goals = _get_customer_conversion_goals(
      client, customer_id)

  # Performance Max campaigns require that repeated assets such as headlines
  # and descriptions be created before the campaign.
  # For the list of required assets for a Performance Max campaign, see
  # https://developers.google.com/google-ads/api/docs/performance-max/assets
  #
  # Create the headlines.
  headline_asset_resource_names = create_multiple_text_assets(
    client,
    customer_id,
    [
      "Travel",
      "Travel Reviews",
      "Book travel",
    ])
  # Create the descriptions.
  description_asset_resource_names = create_multiple_text_assets(
    client,
    customer_id,
    [
      "Take to the air!",
      "Fly to the sky!",
    ])

  # The below methods create and return MutateOperations that we later
  # provide to the GoogleAdsService.Mutate method in order to create the
  # entities in a single request. Since the entities for a Performance Max
  # campaign are closely tied to one-another, it's considered a best practice
  # to create them in a single Mutate request so they all complete
  # successfully or fail entirely, leaving no orphaned entities. See:
  # https://developers.google.com/google-ads/api/docs/mutating/overview
  campaign_budget_operation = create_campaign_budget_operation(
    client,
    customer_id,
  )
  performance_max_campaign_operation = create_performance_max_campaign_operation(
    client,
    customer_id,
    merchant_center_account_id,
  )
  campaign_criterion_operations = create_campaign_criterion_operations(
    client,
    customer_id,
  )
  asset_group_operation = create_asset_group_operation(
    client,
    customer_id,
    final_url,
  )
  listing_group_filter_operation = create_listing_group_filter_operation(
    client,
    customer_id,
  )
  asset_and_asset_group_asset_operations = create_asset_and_asset_group_asset_operations(
    client,
    customer_id,
    headline_asset_resource_names,
    description_asset_resource_names,
  )
  conversion_goal_operations = create_conversion_goal_operations(
    client,
    customer_id,
    customer_conversion_goals,
  )

  # Send the operations in a single Mutate request.
  response = client.service.google_ads.mutate(
    customer_id: customer_id,
    mutate_operations: [
      # It's important to create these entities in this order because
      # they depend on each other.
      campaign_budget_operation,
      performance_max_campaign_operation,
      # Expand the list of multiple operations into the list of
      # other mutate operations
      campaign_criterion_operations,
      asset_group_operation,
      listing_group_filter_operation,
      asset_and_asset_group_asset_operations,
      conversion_goal_operations,
    ].flatten)

  print_response_details(response)
end

# Creates a MutateOperation that creates a new CampaignBudget.
#
# A temporary ID will be assigned to this campaign budget so that it can be
# referenced by other objects being created in the same Mutate request.
def create_campaign_budget_operation(client, customer_id)
    client.operation.mutate do |m|
      m.campaign_budget_operation = client.operation.create_resource.campaign_budget do |cb|
        cb.name = "Performance Max campaign budget #{SecureRandom.uuid}"
        # The budget period already defaults to DAILY.
        cb.amount_micros = 50_000_000
        cb.delivery_method = :STANDARD
          # A Performance Max campaign cannot use a shared campaign budget.
          cb.explicitly_shared = false

        # Set a temporary ID in the budget's resource name so it can be referenced
        # by the campaign in later steps.
        cb.resource_name = client.path.campaign_budget(customer_id, BUDGET_TEMPORARY_ID)
      end
    end
  end

# Creates a MutateOperation that creates a new Performance Max campaign.
#
# A temporary ID will be assigned to this campaign so that it can
# be referenced by other objects being created in the same Mutate request.
def create_performance_max_campaign_operation(
    client,
    customer_id,
    merchant_center_account_id)
    client.operation.mutate do |m|
      m.campaign_operation = client.operation.create_resource.campaign do |c|
        c.name = "Performance Max retail campaign #{SecureRandom.uuid}"
        # Set the campaign status as PAUSED. The campaign is the only entity in
        # the mutate request that should have its status set.
        c.status = :PAUSED
        # All Performance Max campaigns have an advertising_channel_type of
        # PERFORMANCE_MAX. The advertising_channel_sub_type should not be set.
        c.advertising_channel_type = :PERFORMANCE_MAX
        # Bidding strategy must be set directly on the campaign.
        # Setting a portfolio bidding strategy by resource name is not supported.
        # Max Conversion and Maximize Conversion Value are the only strategies
        # supported for Performance Max campaigns.
        # An optional ROAS (Return on Advertising Spend) can be set for
        # maximize_conversion_value. The ROAS value must be specified as a ratio in
        # the API. It is calculated by dividing "total value" by "total spend".
        # For more information on Maximize Conversion Value, see the support
        # article: http://support.google.com/google-ads/answer/7684216.
        # A target_roas of 3.5 corresponds to a 350% return on ad spend.
        c.bidding_strategy_type = :MAXIMIZE_CONVERSION_VALUE
        c.maximize_conversion_value = client.resource.maximize_conversion_value do |mcv|
          mcv.target_roas = 3.5
        end

        # Set the shopping settings.
        c.shopping_setting = client.resource.shopping_setting do |ss|
            ss.merchant_id = merchant_center_account_id
            # Optional: To use products only from a specific feed, set feed_label
            # to the feed label used in Merchant Center.
            # See: https://support.google.com/merchants/answer/12453549.
            # Omitting the feed_label field will use products from all feeds.
            # feed_label = "INSERT_FEED_LABEL_HERE"
        end

        # Set the Final URL expansion opt out. This flag is specific to
        # Performance Max campaigns. If opted out (true), only the final URLs in
        # the asset group or URLs specified in the advertiser's Google Merchant
        # Center or business data feeds are targeted.
        # If opted in (false), the entire domain will be targeted. For best
        # results, set this value to false to opt in and allow URL expansions. You
        # can optionally add exclusions to limit traffic to parts of your website.
        #
        # For a Retail campaign, we want the final URLs to be limited to those
        # explicitly surfaced via GMC.
        c.url_expansion_opt_out = true

        # Assign the resource name with a temporary ID.
        c.resource_name = client.path.campaign(customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID)
        # Set the budget using the given budget resource name.
        c.campaign_budget = client.path.campaign_budget(customer_id, BUDGET_TEMPORARY_ID)

        # Optional fields
        c.start_date = DateTime.parse((Date.today + 1).to_s).strftime('%Y%m%d')
        c.end_date = DateTime.parse(Date.today.next_year.to_s).strftime('%Y%m%d')
      end
    end
  end

# Creates a list of MutateOperations that create new campaign criteria.
def create_campaign_criterion_operations(client, customer_id)
    operations = []

    # Set the LOCATION campaign criteria.
    # Target all of New York City except Brooklyn.
    # Location IDs are listed here:
    # https://developers.google.com/google-ads/api/reference/data/geotargets
    # and they can also be retrieved using the GeoTargetConstantService as shown
    # here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting
    operations << client.operation.mutate do |m|
      m.campaign_criterion_operation =
        client.operation.create_resource.campaign_criterion do |cc|
        cc.campaign = client.path.campaign(
          customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID)
        # Adds one positive location target for New York City (ID=1023191),
        # specifically adding the positive criteria before the negative one.
        cc.location = client.resource.location_info do  |li|
          li.geo_target_constant = client.path.geo_target_constant("1023191")
        end
        cc.negative = false
      end
    end

  # Next add the negative target for Brooklyn (ID=1022762).
  operations << client.operation.mutate do |m|
    m.campaign_criterion_operation =
      client.operation.create_resource.campaign_criterion do |cc|
      cc.campaign = client.path.campaign(
        customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID)
      cc.location = client.resource.location_info do  |li|
        li.geo_target_constant = client.path.geo_target_constant("1022762")
      end
      cc.negative = true
    end
  end

  # Set the LANGUAGE campaign criterion.
  operations << client.operation.mutate do |m|
    m.campaign_criterion_operation =
      client.operation.create_resource.campaign_criterion do |cc|
      cc.campaign = client.path.campaign(
        customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID)
      # Set the language.
      # For a list of all language codes, see:
      # https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7
      cc.language = client.resource.language_info do |li|
        li.language_constant = client.path.language_constant("1000")  # English
      end
    end
  end

  operations
end

# Creates multiple text assets and returns the list of resource names.
# These repeated assets must be created in a separate request prior to creating
# the campaign.
def create_multiple_text_assets(client, customer_id, texts)
  operations = texts.map do |text|
    client.operation.mutate do |m|
      m.asset_operation = client.operation.create_resource.asset do |asset|
        asset.text_asset = client.resource.text_asset do |text_asset|
          text_asset.text = text
        end
      end
    end
  end

  # Send the operations in a single Mutate request.
  response = client.service.google_ads.mutate(
    customer_id: customer_id,
    mutate_operations: operations,
  )

  asset_resource_names = []
  response.mutate_operation_responses.each do |result|
    if result.asset_result
      asset_resource_names.append(result.asset_result.resource_name)
    end
  end
  print_response_details(response)
  asset_resource_names
end

# Creates a MutateOperation that creates a new asset_group.
#
# A temporary ID will be assigned to this asset group so that it can
# be referenced by other objects being created in the same Mutate request.
def create_asset_group_operation(
    client,
    customer_id,
    final_url)

  # Create the AssetGroup
  client.operation.mutate do |m|
    m.asset_group_operation = client.operation.create_resource.asset_group do |ag|
      ag.name = "Performance Max retail asset group #{SecureRandom.uuid}"
      ag.campaign = client.path.campaign(
        customer_id,
        PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID)
      ag.final_urls << final_url
      ag.final_mobile_urls << final_url
      ag.status = :PAUSED
      ag.resource_name = client.path.asset_group(
        customer_id,
        ASSET_GROUP_TEMPORARY_ID,
      )
    end
  end
end

# Creates a MutateOperation that creates a new listing group filter.
# A temporary ID will be assigned to this listing group filter so that it can
# be referenced by other objects being created in the same Mutate request.
def create_listing_group_filter_operation(client, customer_id)
  client.operation.mutate do |m|
    m.asset_group_listing_group_filter_operation =
      client.operation.create_resource.asset_group_listing_group_filter do |aglg|
        aglg.asset_group = client.path.asset_group(
          customer_id,
          ASSET_GROUP_TEMPORARY_ID,
        )
        aglg.type = :UNIT_INCLUDED
        # Because this is a Performance Max campaign for retail, we need to
        # specify that this is in the shopping listing source.
        aglg.listing_source = :SHOPPING
      end
  end
end

# Creates a list of MutateOperations that create a new asset_group.
# A temporary ID will be assigned to this asset group so that it can be
# referenced by other objects being created in the same Mutate request.
def create_asset_and_asset_group_asset_operations(
  client,
  customer_id,
  headline_asset_resource_names,
  description_asset_resource_names)
  operations = []
  # For the list of required assets for a Performance Max campaign, see
  # https://developers.google.com/google-ads/api/docs/performance-max/assets
  #
  # An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
  # and providing:
  #   the resource name of the AssetGroup
  #   the resource name of the Asset
  #   the field_type of the Asset in this AssetGroup.
  #
  # To learn more about AssetGroups, see
  # https://developers.google.com/google-ads/api/docs/performance-max/asset-groups

  # Link the previously created multiple text assets.

  # Link the headline assets.
  headline_asset_resource_names.each do |resource_name|
    operations << client.operation.mutate do |m|
      m.asset_group_asset_operation = client.operation.create_resource
          .asset_group_asset do |aga|
        aga.field_type = :HEADLINE
        aga.asset_group = client.path.asset_group(
          customer_id,
          ASSET_GROUP_TEMPORARY_ID)
        aga.asset = resource_name
      end
    end
  end

  #  Link the description assets.
  description_asset_resource_names.each do |resource_name|
    operations << client.operation.mutate do |m|
      m.asset_group_asset_operation = client.operation.create_resource
          .asset_group_asset do |aga|
        aga.field_type = :DESCRIPTION
        aga.asset_group = client.path.asset_group(
          customer_id,
          ASSET_GROUP_TEMPORARY_ID)
        aga.asset = resource_name
      end
    end
  end

  # Create and link the long headline text asset.
  operations += create_and_link_text_asset(
    client,
    customer_id,
    "Travel the World",
    :LONG_HEADLINE)

  # Create and link the business name text asset.
  operations += create_and_link_text_asset(
    client,
    customer_id,
    "Interplanetary Cruises",
    :BUSINESS_NAME)

  # Create and link the image assets.

  # Create and link the Logo Asset.
  operations += create_and_link_image_asset(
    client,
    customer_id,
    "https://gaagl.page.link/1Crm",
    :LOGO,
    "Logo Image")

  # Create and link the Marketing Image Asset.
  operations += create_and_link_image_asset(
    client,
    customer_id,
    "https://gaagl.page.link/Eit5",
    :MARKETING_IMAGE,
    "Marketing Image")

  # Create and link the Square Marketing Image Asset.
  operations += create_and_link_image_asset(
    client,
    customer_id,
    "https://gaagl.page.link/bjYi",
    :SQUARE_MARKETING_IMAGE,
    "Square Marketing Image")

  # After being created the list must be sorted so that all asset
  # operations come before all the asset group asset operations,
  # otherwise the API will reject the request.
  sort_asset_and_asset_group_asset_operations(operations)
end

# Creates a list of MutateOperations that create a new linked text asset.
def create_and_link_text_asset(client, customer_id, text, field_type)
  operations = []
  temp_id = next_temp_id

  # Create the Text Asset.
  operations << client.operation.mutate do |m|
    m.asset_operation = client.operation.create_resource.asset do |a|
      a.resource_name = client.path.asset(customer_id, temp_id)
      a.text_asset = client.resource.text_asset do |text_asset|
        text_asset.text = text
      end
    end
  end

  # Create an AssetGroupAsset to link the Asset to the AssetGroup.
  operations << client.operation.mutate do |m|
    m.asset_group_asset_operation = client.operation.create_resource
        .asset_group_asset do |aga|
      aga.field_type = field_type
      aga.asset_group = client.path.asset_group(
        customer_id,
        ASSET_GROUP_TEMPORARY_ID)
      aga.asset = client.path.asset(customer_id, temp_id)
    end
  end

  operations
end

# Creates a list of MutateOperations that create a new linked image asset.
def create_and_link_image_asset(client, customer_id, url, field_type, asset_name)
  operations = []
  temp_id = next_temp_id

  # Create the Image Asset.
  operations << client.operation.mutate do |m|
    m.asset_operation = client.operation.create_resource.asset do |a|
      a.resource_name = client.path.asset(customer_id, temp_id)
      a.type = :IMAGE
      # Provide a unique friendly name to identify your asset.
      # When there is an existing image asset with the same content but a different
      # name, the new name will be dropped silently.
      a.name = asset_name
      a.image_asset = client.resource.image_asset do |image_asset|
        image_asset.data = get_image_bytes(url)
      end
    end
  end

  # Create an AssetGroupAsset to link the Asset to the AssetGroup.
  operations << client.operation.mutate do |m|
    m.asset_group_asset_operation = client.operation.create_resource
        .asset_group_asset do |aga|
      aga.field_type = field_type
      aga.asset_group = client.path.asset_group(
        customer_id,
        ASSET_GROUP_TEMPORARY_ID)
      aga.asset = client.path.asset(customer_id, temp_id)
    end
  end

  operations
end

# Sorts a list of asset and asset group asset operations.  This sorts the list
# such that all asset operations precede all asset group asset operations. If
# asset group assets are created before assets then an error will be returned
# by the API.
def sort_asset_and_asset_group_asset_operations(operations)
  operations.sort_by do |operation|
    if operation.asset_group_asset_operation
      1
    else
      0
    end
  end
end

def _get_customer_conversion_goals(client, customer_id)
  query = <<~EOD
    SELECT
        customer_conversion_goal.category,
        customer_conversion_goal.origin
    FROM customer_conversion_goal
  EOD

  customer_conversion_goals = []

  ga_service = client.service.google_ads
  # The number of conversion goals is typically less than 50 so we use
  # GoogleAdsService.search instead of search_stream.
  response = ga_service.search(
      customer_id: customer_id,
      query: query,
  )

  # Iterate over the results and build the list of conversion goals.
  response.each do |row|
    customer_conversion_goals << {
        "category" => row.customer_conversion_goal.category,
        "origin" => row.customer_conversion_goal.origin
    }
  end

  customer_conversion_goals
end

def create_conversion_goal_operations(client, customer_id, customer_conversion_goals)
  campaign_conversion_goal_service = client.service.campaign_conversion_goal

  operations = []

  # To override the customer conversion goals, we will change the
  # biddability of each of the customer conversion goals so that only
  # the desired conversion goal is biddable in this campaign.
  customer_conversion_goals.each do |customer_conversion_goal|
    operations << client.operation.mutate do |m|
        m.campaign_conversion_goal_operation = client.operation.campaign_conversion_goal do |op|
          op.update = client.resource.campaign_conversion_goal do |ccg|
              ccg.resource_name = client.path.campaign_conversion_goal(
                  customer_id,
                  PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID,
                  customer_conversion_goal["category"].to_s,
                  customer_conversion_goal["origin"].to_s)
              # Change the biddability for the campaign conversion goal.
              # Set biddability to True for the desired (category, origin).
              # Set biddability to False for all other conversion goals.
              # Note:
              #  1- It is assumed that this Conversion Action
              #     (category=PURCHASE, origin=WEBSITE) exists in this account.
              #  2- More than one goal can be biddable if desired. This example
              #     shows only one.
              ccg.biddable = (customer_conversion_goal["category"] == :PURCHASE &&
                  customer_conversion_goal["origin"] == :WEBSITE)
          end
          op.update_mask = Google::Ads::GoogleAds::FieldMaskUtil.all_set_fields_of(op.update)
        end
    end
  end

  operations
end

# Loads image data from a URL.
def get_image_bytes(url)
    URI.open(url).read
  end

  # Prints the details of a MutateGoogleAdsResponse.
  def print_response_details(response)
    # Parse the mutate response to print details about the entities that
    # were created by the request.
    suffix = "_result"
    response.mutate_operation_responses.each do |result|
      result.to_h.select {|k, v| v }.each do |name, value|
        if name.to_s.end_with?(suffix)
          name = name.to_s.delete_suffix(suffix)
        end

        puts "Created a(n) #{::Google::Ads::GoogleAds::Utils.camelize(name)} " \
          "with #{value.to_s.strip}."
      end
    end
  end

if __FILE__ == $0
    options = {}

    # The following parameter(s) should be provided to run the example. You can
    # either specify these by changing the INSERT_XXX_ID_HERE values below, or on
    # the command line.
    #
    # Parameters passed on the command line will override any parameters set in
    # code.
    #
    # Running the example with -h will print the command line usage.
    options[:customer_id] = 'INSERT_CUSTOMER_ID_HERE'
    options[:merchant_center_account_id] = 'INSERT_MERCHANT_CENTER_ACCOUNT_ID_HERE'
    options[:final_url] = 'INSERT_FINAL_URL_HERE'

    OptionParser.new do |opts|
      opts.banner = sprintf('Usage: %s [options]', File.basename(__FILE__))

      opts.separator ''
      opts.separator 'Options:'

      opts.on('-C', '--customer-id CUSTOMER-ID', String, 'Customer ID') do |v|
        options[:customer_id] = v
      end

      opts.on('-m', '--merchant-center-account-id MERCHANT-CENTER-ACCOUNT-ID',
          Integer, 'Merchant Center Account ID') do |v|
        options[:merchant_center_account_id] = v
      end

      opts.on('-f', '--final-url FINAL-URL', String, 'Final URL') do |v|
        options[:final_url] = v
      end

      opts.separator ''
      opts.separator 'Help:'

      opts.on_tail('-h', '--help', 'Show this message') do
        puts opts
        exit
      end
    end.parse!

    begin
      add_performance_max_retail_campaign(
          options.fetch(:customer_id).tr("-", ""),
          options.fetch(:merchant_center_account_id),
          options.fetch(:final_url))
    rescue Google::Ads::GoogleAds::Errors::GoogleAdsError => e
      e.failure.errors.each do |error|
        STDERR.printf("Error with message: %s\n", error.message)
        if error.location
          error.location.field_path_elements.each do |field_path_element|
            STDERR.printf("\tOn field: %s\n", field_path_element.field_name)
          end
        end
        error.error_code.to_h.each do |k, v|
          next if v == :UNSPECIFIED
          STDERR.printf("\tType: %s\n\tCode: %s\n", k, v)
        end
      end
      raise
    end
  end
add_performance_max_retail_campaign.rb
      

Perl

#!/usr/bin/perl -w
#
# Copyright 2021, Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This example shows how to create a Performance Max retail campaign.
#
# This will be created for "All products".
#
# For more information about Performance Max retail campaigns, see
# https://developers.google.com/google-ads/api/docs/performance-max/retail.
#
# Prerequisites:
# - You need to have access to a Merchant Center account. You can find
#   instructions to create a Merchant Center account here:
#   https://support.google.com/merchants/answer/188924.
#   This account must be linked to your Google Ads account. The integration
#   instructions can be found at:
#   https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center.
# - You need your Google Ads account to track conversions. The different ways
#   to track conversions can be found here:
#   https://support.google.com/google-ads/answer/1722054.
# - You must have at least one conversion action in the account. For more about
#   conversion actions, see
#   https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions.

use strict;
use warnings;
use utf8;

use FindBin qw($Bin);
use lib "$Bin/../../lib";
use Google::Ads::GoogleAds::Client;
use Google::Ads::GoogleAds::Utils::GoogleAdsHelper;
use Google::Ads::GoogleAds::Utils::MediaUtils;
use Google::Ads::GoogleAds::Utils::FieldMasks;
use Google::Ads::GoogleAds::V18::Resources::CampaignBudget;
use Google::Ads::GoogleAds::V18::Resources::Campaign;
use Google::Ads::GoogleAds::V18::Resources::ShoppingSetting;
use Google::Ads::GoogleAds::V18::Resources::CampaignCriterion;
use Google::Ads::GoogleAds::V18::Resources::Asset;
use Google::Ads::GoogleAds::V18::Resources::AssetGroup;
use Google::Ads::GoogleAds::V18::Resources::AssetGroupAsset;
use Google::Ads::GoogleAds::V18::Resources::CampaignConversionGoal;
use Google::Ads::GoogleAds::V18::Resources::AssetGroupListingGroupFilter;
use Google::Ads::GoogleAds::V18::Common::MaximizeConversionValue;
use Google::Ads::GoogleAds::V18::Common::LocationInfo;
use Google::Ads::GoogleAds::V18::Common::LanguageInfo;
use Google::Ads::GoogleAds::V18::Common::TextAsset;
use Google::Ads::GoogleAds::V18::Common::ImageAsset;
use Google::Ads::GoogleAds::V18::Enums::BudgetDeliveryMethodEnum qw(STANDARD);
use Google::Ads::GoogleAds::V18::Enums::CampaignStatusEnum;
use Google::Ads::GoogleAds::V18::Enums::AdvertisingChannelTypeEnum
  qw(PERFORMANCE_MAX);
use Google::Ads::GoogleAds::V18::Enums::AssetGroupStatusEnum;
use Google::Ads::GoogleAds::V18::Enums::AssetFieldTypeEnum
  qw(HEADLINE DESCRIPTION LONG_HEADLINE BUSINESS_NAME LOGO MARKETING_IMAGE SQUARE_MARKETING_IMAGE);
use Google::Ads::GoogleAds::V18::Enums::ConversionActionCategoryEnum
  qw(PURCHASE);
use Google::Ads::GoogleAds::V18::Enums::ConversionOriginEnum qw(WEBSITE);
use Google::Ads::GoogleAds::V18::Enums::ListingGroupFilterTypeEnum
  qw(UNIT_INCLUDED);
use Google::Ads::GoogleAds::V18::Enums::ListingGroupFilterListingSourceEnum
  qw(SHOPPING);
use Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation;
use
  Google::Ads::GoogleAds::V18::Services::CampaignBudgetService::CampaignBudgetOperation;
use Google::Ads::GoogleAds::V18::Services::CampaignService::CampaignOperation;
use
  Google::Ads::GoogleAds::V18::Services::CampaignCriterionService::CampaignCriterionOperation;
use Google::Ads::GoogleAds::V18::Services::AssetService::AssetOperation;
use
  Google::Ads::GoogleAds::V18::Services::AssetGroupService::AssetGroupOperation;
use
  Google::Ads::GoogleAds::V18::Services::AssetGroupAssetService::AssetGroupAssetOperation;
use
  Google::Ads::GoogleAds::V18::Services::CampaignConversionGoalService::CampaignConversionGoalOperation;
use
  Google::Ads::GoogleAds::V18::Services::AssetGroupListingGroupFilterService::AssetGroupListingGroupFilterOperation;
use Google::Ads::GoogleAds::V18::Utils::ResourceNames;

use Getopt::Long qw(:config auto_help);
use Pod::Usage;
use Cwd          qw(abs_path);
use Data::Uniqid qw(uniqid);
use POSIX        qw(strftime);

# We specify temporary IDs that are specific to a single mutate request.
# Temporary IDs are always negative and unique within one mutate request.
#
# See https://developers.google.com/google-ads/api/docs/mutating/best-practices
# for further details.
#
# These temporary IDs are fixed because they are used in multiple places.
use constant BUDGET_TEMPORARY_ID                   => -1;
use constant PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID => -2;
use constant ASSET_GROUP_TEMPORARY_ID              => -3;

# There are also entities that will be created in the same request but do not
# need to be fixed temporary IDs because they are referenced only once.
our $next_temp_id = ASSET_GROUP_TEMPORARY_ID - 1;

sub add_performance_max_retail_campaign {
  my ($api_client, $customer_id, $merchant_center_account_id, $final_url) = @_;

  # This campaign will override the customer conversion goals.
  # Retrieve the current list of customer conversion goals.
  my $customer_conversion_goals =
    get_customer_conversion_goals($api_client, $customer_id);

  # Performance Max campaigns require that repeated assets such as headlines
  # and descriptions be created before the campaign.
  # For the list of required assets for a Performance Max campaign, see
  # https://developers.google.com/google-ads/api/docs/performance-max/assets.
  #
  # Create the headlines.
  my $headline_asset_resource_names =
    create_multiple_text_assets($api_client, $customer_id,
    ["Travel", "Travel Reviews", "Book travel"]);
  # Create the descriptions.
  my $description_asset_resource_names =
    create_multiple_text_assets($api_client, $customer_id,
    ["Take to the air!", "Fly to the sky!"]);

  # It's important to create the below entities in this order because they depend
  # on each other.
  my $operations = [];
  # The below methods create and return MutateOperations that we later provide to
  # the GoogleAdsService->mutate() method in order to create the entities in a
  # single request. Since the entities for a Performance Max campaign are closely
  # tied to one-another, it's considered a best practice to create them in a
  # single mutate request so they all complete successfully or fail entirely,
  # leaving no orphaned entities. See:
  # https://developers.google.com/google-ads/api/docs/mutating/overview.
  push @$operations, create_campaign_budget_operation($customer_id);
  push @$operations,
    create_performance_max_campaign_operation($customer_id,
    $merchant_center_account_id);
  push @$operations, @{create_campaign_criterion_operations($customer_id)};
  push @$operations, create_asset_group_operation($customer_id, $final_url);
  push @$operations, create_listing_group_filter_operation($customer_id);
  push @$operations,
    @{
    create_asset_and_asset_group_asset_operations(
      $customer_id, $headline_asset_resource_names,
      $description_asset_resource_names
    )};
  push @$operations,
    @{create_conversion_goal_operations($customer_id,
      $customer_conversion_goals)};

  # Issue a mutate request to create everything and print its information.
  my $mutate_google_ads_response = $api_client->GoogleAdsService()->mutate({
    customerId       => $customer_id,
    mutateOperations => $operations
  });

  print_response_details($mutate_google_ads_response);

  return 1;
}

# Creates a MutateOperation that creates a new CampaignBudget.
#
# A temporary ID will be assigned to this campaign budget so that it can be
# referenced by other objects being created in the same mutate request.
sub create_campaign_budget_operation {
  my ($customer_id) = @_;

  # Create a mutate operation that creates a campaign budget operation.
  return
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      campaignBudgetOperation =>
        Google::Ads::GoogleAds::V18::Services::CampaignBudgetService::CampaignBudgetOperation
        ->new({
          create => Google::Ads::GoogleAds::V18::Resources::CampaignBudget->new(
            {
              # Set a temporary ID in the budget's resource name so it can be
              # referenced by the campaign in later steps.
              resourceName =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign_budget(
                $customer_id, BUDGET_TEMPORARY_ID
                ),
              name => "Performance Max retail campaign budget #" . uniqid(),
              # The budget period already defaults to DAILY.
              amountMicros   => 50000000,
              deliveryMethod => STANDARD,
              # A Performance Max campaign cannot use a shared campaign budget.
              explicitlyShared => "false",
            })})});
}

# Creates a MutateOperation that creates a new Performance Max campaign.
#
# A temporary ID will be assigned to this campaign so that it can be referenced
# by other objects being created in the same mutate request.
sub create_performance_max_campaign_operation {
  my ($customer_id, $merchant_center_account_id) = @_;

  # Create a mutate operation that creates a campaign operation.
  return
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      campaignOperation =>
        Google::Ads::GoogleAds::V18::Services::CampaignService::CampaignOperation
        ->new({
          create => Google::Ads::GoogleAds::V18::Resources::Campaign->new({
              # Assign the resource name with a temporary ID.
              resourceName =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
                $customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                ),
              name => "Performance Max retail campaign #'" . uniqid(),
              # Set the budget using the given budget resource name.
              campaignBudget =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign_budget(
                $customer_id, BUDGET_TEMPORARY_ID
                ),
              # Set the campaign status as PAUSED. The campaign is the only entity in
              # the mutate request that should have its status set.
              status =>
                Google::Ads::GoogleAds::V18::Enums::CampaignStatusEnum::PAUSED,
              # All Performance Max campaigns have an advertisingChannelType of
              # PERFORMANCE_MAX. The advertisingChannelSubType should not be set.
              advertisingChannelType => PERFORMANCE_MAX,

              # Bidding strategy must be set directly on the campaign.
              # Setting a portfolio bidding strategy by resource name is not supported.
              # Max Conversion and Max Conversion Value are the only strategies
              # supported for Performance Max campaigns.
              # An optional ROAS (Return on Advertising Spend) can be set for
              # maximizeConversionValue. The ROAS value must be specified as a ratio in
              # the API. It is calculated by dividing "total value" by "total spend".
              # For more information on Max Conversion Value, see the support article:
              # http://support.google.com/google-ads/answer/7684216.
              # A targetRoas of 3.5 corresponds to a 350% return on ad spend.
              # For first time users, it's recommended not to set a target ROAS.
              # maximizeConversionValue =>
              #   Google::Ads::GoogleAds::V18::Common::MaximizeConversionValue->
              #   new({
              #     targetRoas => 3.5
              #   }
              # ),
              # Below is what you would use if you want to maximize conversions.
              # maximizeConversions =>
              #   Google::Ads::GoogleAds::V18::Common::MaximizeConversions->
              #   new({
              #     targetCpaMicros => 1000000
              #   }
              # ),
              # The target CPA is optional. This is the average amount that you would
              # like to spend per conversion action.

              # Set the shopping settings.
              shoppingSetting =>
                Google::Ads::GoogleAds::V18::Resources::ShoppingSetting->new({
                  merchantId => $merchant_center_account_id,
                  # Optional: To use products only from a specific feed, set feedLabel
                  # to the feed label used in Merchant Center.
                  # See: https://support.google.com/merchants/answer/12453549.
                  # Omitting the feedLabel field will use products from all feeds.
                  # feedLabel => "INSERT_FEED_LABEL_HERE"
                }
                ),

              # Set the final URL expansion opt out. This flag is specific to
              # Performance Max campaigns. If opted out (true), only the final URLs in
              # the asset group or URLs specified in the advertiser's Google Merchant
              # Center or business data feeds are targeted.
              # If opted in (false), the entire domain will be targeted. For best
              # results, set this value to false to opt in and allow URL expansions. You
              # can optionally add exclusions to limit traffic to parts of your website.
              #
              # For a Retail campaign, we want the final URL to be limited to those
              # explicitly surfaced via GMC.
              urlExpansionOptOut => "true",

              # Optional fields.
              startDate => strftime("%Y%m%d", localtime(time + 60 * 60 * 24)),
              endDate   =>
                strftime("%Y%m%d", localtime(time + 60 * 60 * 24 * 365)),
            })})});
}

# Creates a list of MutateOperations that create new campaign criteria.
sub create_campaign_criterion_operations {
  my ($customer_id) = @_;

  my $operations = [];
  # Set the LOCATION campaign criteria.
  # Target all of New York City except Brooklyn.
  # Location IDs are listed here:
  # https://developers.google.com/google-ads/api/reference/data/geotargets
  # and they can also be retrieved using the GeoTargetConstantService as shown
  # here: https://developers.google.com/google-ads/api/docs/targeting/location-targeting.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      campaignCriterionOperation =>
        Google::Ads::GoogleAds::V18::Services::CampaignCriterionService::CampaignCriterionOperation
        ->new({
          create =>
            Google::Ads::GoogleAds::V18::Resources::CampaignCriterion->new({
              campaign =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
                $customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                ),
              # Adds one positive location target for New York City (ID=1023191),
              # specifically adding the positive criteria before the negative one.
              location =>
                Google::Ads::GoogleAds::V18::Common::LocationInfo->new({
                  geoTargetConstant =>
                    Google::Ads::GoogleAds::V18::Utils::ResourceNames::geo_target_constant(
                    1023191)}
                ),
              negative => "false"
            })})});

  # Next add the negative target for Brooklyn (ID=1022762).
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      campaignCriterionOperation =>
        Google::Ads::GoogleAds::V18::Services::CampaignCriterionService::CampaignCriterionOperation
        ->new({
          create =>
            Google::Ads::GoogleAds::V18::Resources::CampaignCriterion->new({
              campaign =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
                $customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                ),
              location =>
                Google::Ads::GoogleAds::V18::Common::LocationInfo->new({
                  geoTargetConstant =>
                    Google::Ads::GoogleAds::V18::Utils::ResourceNames::geo_target_constant(
                    1022762)}
                ),
              negative => "true"
            })})});

  # Set the LANGUAGE campaign criterion.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      campaignCriterionOperation =>
        Google::Ads::GoogleAds::V18::Services::CampaignCriterionService::CampaignCriterionOperation
        ->new({
          create =>
            Google::Ads::GoogleAds::V18::Resources::CampaignCriterion->new({
              campaign =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
                $customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                ),
              # Set the language.
              # For a list of all language codes, see:
              # https://developers.google.com/google-ads/api/reference/data/codes-formats#expandable-7.
              language =>
                Google::Ads::GoogleAds::V18::Common::LanguageInfo->new({
                  languageConstant =>
                    Google::Ads::GoogleAds::V18::Utils::ResourceNames::language_constant(
                    1000)    # English
                })})})});

  return $operations;
}

# Creates multiple text assets and returns the list of resource names.
#
# These repeated assets must be created in a separate request prior to
# creating the campaign.
sub create_multiple_text_assets {
  my ($api_client, $customer_id, $texts) = @_;

  # Here again we use the GoogleAdService to create multiple text assets in a
  # single request.
  my $operations = [];
  foreach my $text (@$texts) {
    # Create a mutate operation for a text asset.
    push @$operations,
      Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation
      ->new({
        assetOperation =>
          Google::Ads::GoogleAds::V18::Services::AssetService::AssetOperation->
          new({
            create => Google::Ads::GoogleAds::V18::Resources::Asset->new({
                textAsset =>
                  Google::Ads::GoogleAds::V18::Common::TextAsset->new({
                    text => $text
                  })})})});
  }

  # Issue a mutate request to add all assets.
  my $mutate_google_ads_response = $api_client->GoogleAdsService()->mutate({
    customerId       => $customer_id,
    mutateOperations => $operations
  });

  my $asset_resource_names = [];
  foreach
    my $response (@{$mutate_google_ads_response->{mutateOperationResponses}})
  {
    push @$asset_resource_names, $response->{assetResult}{resourceName};
  }
  print_response_details($mutate_google_ads_response);

  return $asset_resource_names;
}

# Creates a MutateOperation that creates a new asset group.
#
# A temporary ID will be assigned to this asset group so that it can be referenced
# by other objects being created in the same mutate request.
sub create_asset_group_operation {
  my ($customer_id, $final_url) = @_;

  # Create a mutate operation that creates an asset group operation.
  return
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetGroupOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetGroupService::AssetGroupOperation
        ->new({
          create => Google::Ads::GoogleAds::V18::Resources::AssetGroup->new({
              resourceName =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
                $customer_id, ASSET_GROUP_TEMPORARY_ID
                ),
              name     => "Performance Max retail asset group #" . uniqid(),
              campaign =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
                $customer_id, PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID
                ),
              finalUrls       => [$final_url],
              finalMobileUrls => [$final_url],
              status          =>
                Google::Ads::GoogleAds::V18::Enums::AssetGroupStatusEnum::PAUSED
            })})});
}

# Creates a MutateOperation that creates a new listing group filter.
# A temporary ID will be assigned to this listing group filter so that it
# can be referenced by other objects being created in the same Mutate request.
sub create_listing_group_filter_operation {
  my ($customer_id) = @_;

  # Creates a new ad group criterion containing the "default" listing group
  # (All products).
  my $listing_group_filter =
    Google::Ads::GoogleAds::V18::Resources::AssetGroupListingGroupFilter->new({
      assetGroup =>
        Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
        $customer_id, ASSET_GROUP_TEMPORARY_ID
        ),

      # Since this is the root node, do not set the parentListingGroupFilter.
      # For all other nodes, this would refer to the parent listing group filter
      # resource name.
      # parentListingGroupFilter => "<PARENT FILTER NAME>"

      # The subdivision type means this node has children. This type is used for
      # the root node as well.
      type => UNIT_INCLUDED,

      # Because this is a Performance Max campaign for retail, we need to specify
      # that this is in the shopping listing source.
      listingSource => SHOPPING
    });

  return
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetGroupListingGroupFilterOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetGroupListingGroupFilterService::AssetGroupListingGroupFilterOperation
        ->new({
          create => $listing_group_filter
        })});
}

# Creates a list of MutateOperations that create a new asset_group.
# A temporary ID will be assigned to this asset group so that it can
# be referenced by other objects being created in the same Mutate request.
sub create_asset_and_asset_group_asset_operations {
  my (
    $customer_id,
    $headline_asset_resource_names,
    $description_asset_resource_names
  ) = @_;

  my $operations = [];
  # For the list of required assets for a Performance Max campaign, see
  # https://developers.google.com/google-ads/api/docs/performance-max/assets.

  # An AssetGroup is linked to an Asset by creating a new AssetGroupAsset
  # and providing:
  # - the resource name of the AssetGroup
  # - the resource name of the Asset
  # - the fieldType of the Asset in this AssetGroup
  #
  # To learn more about AssetGroups, see
  # https://developers.google.com/google-ads/api/docs/performance-max/asset-groups.

  # Link the previously created multiple text assets.

  # Link the headline assets.
  foreach my $resource_name (@$headline_asset_resource_names) {
    push @$operations,
      Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation
      ->new({
        assetGroupAssetOperation =>
          Google::Ads::GoogleAds::V18::Services::AssetGroupAssetService::AssetGroupAssetOperation
          ->new({
            create =>
              Google::Ads::GoogleAds::V18::Resources::AssetGroupAsset->new({
                asset      => $resource_name,
                assetGroup =>
                  Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
                  $customer_id, ASSET_GROUP_TEMPORARY_ID
                  ),
                fieldType => HEADLINE
              })})});
  }

  # Link the description assets.
  foreach my $resource_name (@$description_asset_resource_names) {
    push @$operations,
      Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation
      ->new({
        assetGroupAssetOperation =>
          Google::Ads::GoogleAds::V18::Services::AssetGroupAssetService::AssetGroupAssetOperation
          ->new({
            create =>
              Google::Ads::GoogleAds::V18::Resources::AssetGroupAsset->new({
                asset      => $resource_name,
                assetGroup =>
                  Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
                  $customer_id, ASSET_GROUP_TEMPORARY_ID
                  ),
                fieldType => DESCRIPTION
              })})});
  }

  # Create and link the long headline text asset.
  push @$operations,
    @{create_and_link_text_asset($customer_id, "Travel the World",
      LONG_HEADLINE)};

  # Create and link the business name text asset.
  push @$operations,
    @{
    create_and_link_text_asset($customer_id, "Interplanetary Cruises",
      BUSINESS_NAME)};

  # Create and link the image assets.

  # Create and link the logo asset.
  push @$operations,
    @{
    create_and_link_image_asset($customer_id, "https://gaagl.page.link/1Crm",
      LOGO, "Logo Image")};

  # Create and link the marketing image asset.
  push @$operations,
    @{
    create_and_link_image_asset(
      $customer_id,    "https://gaagl.page.link/Eit5",
      MARKETING_IMAGE, "Marketing Image"
    )};

  # Create and link the square marketing image asset.
  push @$operations,
    @{
    create_and_link_image_asset(
      $customer_id,           "https://gaagl.page.link/bjYi",
      SQUARE_MARKETING_IMAGE, "Square Marketing Image"
    )};

  # After being created the list must be sorted so that all asset
  # operations come before all the asset group asset operations,
  # otherwise the API will reject the request.
  return sort_asset_and_asset_group_asset_operations($operations);
}

# Creates a list of MutateOperations that create a new linked text asset.
sub create_and_link_text_asset {
  my ($customer_id, $text, $field_type) = @_;

  my $operations = [];
  # Create a new mutate operation for a text asset.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetService::AssetOperation->
        new({
          create => Google::Ads::GoogleAds::V18::Resources::Asset->new({
              resourceName =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset(
                $customer_id, $next_temp_id
                ),
              textAsset => Google::Ads::GoogleAds::V18::Common::TextAsset->new({
                  text => $text
                })})})});

  # Create an asset group asset to link the asset to the asset group.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetGroupAssetOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetGroupAssetService::AssetGroupAssetOperation
        ->new({
          create =>
            Google::Ads::GoogleAds::V18::Resources::AssetGroupAsset->new({
              asset => Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset(
                $customer_id, $next_temp_id
              ),
              assetGroup =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
                $customer_id, ASSET_GROUP_TEMPORARY_ID
                ),
              fieldType => $field_type
            })})});

  $next_temp_id--;
  return $operations;
}

# Creates a list of MutateOperations that create a new linked image asset.
sub create_and_link_image_asset {
  my ($customer_id, $url, $field_type, $asset_name) = @_;

  my $operations = [];
  # Create a new mutate operation for an image asset.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetService::AssetOperation->
        new({
          create => Google::Ads::GoogleAds::V18::Resources::Asset->new({
              resourceName =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset(
                $customer_id, $next_temp_id
                ),
              # Provide a unique friendly name to identify your asset.
              # When there is an existing image asset with the same content but a different
              # name, the new name will be dropped silently.
              name       => $asset_name,
              imageAsset =>
                Google::Ads::GoogleAds::V18::Common::ImageAsset->new({
                  data => get_base64_data_from_url($url)})})})});

  # Create an asset group asset to link the asset to the asset group.
  push @$operations,
    Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation->
    new({
      assetGroupAssetOperation =>
        Google::Ads::GoogleAds::V18::Services::AssetGroupAssetService::AssetGroupAssetOperation
        ->new({
          create =>
            Google::Ads::GoogleAds::V18::Resources::AssetGroupAsset->new({
              asset => Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset(
                $customer_id, $next_temp_id
              ),
              assetGroup =>
                Google::Ads::GoogleAds::V18::Utils::ResourceNames::asset_group(
                $customer_id, ASSET_GROUP_TEMPORARY_ID
                ),
              fieldType => $field_type
            })})});

  $next_temp_id--;
  return $operations;
}

# Sorts a list of asset and asset group asset operations.
#
# This sorts the list such that all asset operations precede
# all asset group asset operations. If asset group assets are
# created before assets then an error will be returned by the API.
sub sort_asset_and_asset_group_asset_operations {
  my ($operations) = @_;

  sub sorter {
    if (defined $a->{assetOperation}) {
      return -1;
    } else {
      return 1;
    }
  }
  my @operations_sorted = sort sorter @$operations;
  return \@operations_sorted;
}

# Retrieves the list of customer conversion goals.
sub get_customer_conversion_goals {
  my ($api_client, $customer_id) = @_;

  my $customer_conversion_goals = [];
  # Create a query that retrieves all customer conversion goals.
  my $query =
    "SELECT customer_conversion_goal.category, customer_conversion_goal.origin "
    . "FROM customer_conversion_goal";
  # The number of conversion goals is typically less than 50 so we use
  # GoogleAdsService->search() method instead of search_stream().
  my $search_response = $api_client->GoogleAdsService()->search({
    customerId => $customer_id,
    query      => $query
  });

  # Iterate over the results and build the list of conversion goals.
  foreach my $google_ads_row (@{$search_response->{results}}) {
    push @$customer_conversion_goals,
      {
      category => $google_ads_row->{customerConversionGoal}{category},
      origin   => $google_ads_row->{customerConversionGoal}{origin}};
  }

  return $customer_conversion_goals;
}

# Creates a list of MutateOperations that override customer conversion goals.
sub create_conversion_goal_operations {
  my ($customer_id, $customer_conversion_goals) = @_;

  my $operations = [];
  # To override the customer conversion goals, we will change the biddability of
  # each of the customer conversion goals so that only the desired conversion goal
  # is biddable in this campaign.
  foreach my $customer_conversion_goal (@$customer_conversion_goals) {
    my $campaign_conversion_goal =
      Google::Ads::GoogleAds::V18::Resources::CampaignConversionGoal->new({
        resourceName =>
          Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign_conversion_goal(
          $customer_id,
          PERFORMANCE_MAX_CAMPAIGN_TEMPORARY_ID,
          $customer_conversion_goal->{category},
          $customer_conversion_goal->{origin})});
    # Change the biddability for the campaign conversion goal.
    # Set biddability to true for the desired (category, origin).
    # Set biddability to false for all other conversion goals.
    # Note:
    #  1- It is assumed that this Conversion Action
    #     (category=PURCHASE, origin=WEBSITE) exists in this account.
    #  2- More than one goal can be biddable if desired. This example
    #     shows only one.
    if ( $customer_conversion_goal->{category} eq PURCHASE
      && $customer_conversion_goal->{origin} eq WEBSITE)
    {
      $campaign_conversion_goal->{biddable} = "true";
    } else {
      $campaign_conversion_goal->{biddable} = "false";
    }

    push @$operations,
      Google::Ads::GoogleAds::V18::Services::GoogleAdsService::MutateOperation
      ->new({
        campaignConversionGoalOperation =>
          Google::Ads::GoogleAds::V18::Services::CampaignConversionGoalService::CampaignConversionGoalOperation
          ->new({
            update => $campaign_conversion_goal,
            # Set the update mask on the operation. Here the update mask will be
            # a list of all the fields that were set on the update object.
            updateMask => all_set_fields_of($campaign_conversion_goal)})});
  }

  return $operations;
}

# Prints the details of a MutateGoogleAdsResponse.
# Parses the "response" oneof field name and uses it to extract the new entity's
# name and resource name.
sub print_response_details {
  my ($mutate_google_ads_response) = @_;

  foreach
    my $response (@{$mutate_google_ads_response->{mutateOperationResponses}})
  {
    my $result_type = [keys %$response]->[0];

    printf "Created a(n) %s with '%s'.\n",
      ucfirst $result_type =~ s/Result$//r,
      $response->{$result_type}{resourceName};
  }
}

# Don't run the example if the file is being included.
if (abs_path($0) ne abs_path(__FILE__)) {
  return 1;
}

# Get Google Ads Client, credentials will be read from ~/googleads.properties.
my $api_client = Google::Ads::GoogleAds::Client->new();

# By default examples are set to die on any server returned fault.
$api_client->set_die_on_faults(1);

my $customer_id                = undef;
my $merchant_center_account_id = undef;
my $sales_country              = "US";
my $final_url                  = "http://www.example.com";

# Parameters passed on the command line will override any parameters set in code.
GetOptions(
  "customer_id=s"                => \$customer_id,
  "merchant_center_account_id=i" => \$merchant_center_account_id,
  "sales_country=s"              => \$sales_country,
  "final_url=s"                  => \$final_url
);

# Print the help message if the parameters are not initialized in the code nor
# in the command line.
pod2usage(2)
  if not check_params($customer_id, $merchant_center_account_id, $sales_country,
  $final_url);

# Call the example.
add_performance_max_retail_campaign($api_client, $customer_id =~ s/-//gr,
  $merchant_center_account_id, $sales_country, $final_url);

=pod

=head1 NAME

add_performance_max_retail_campaign

=head1 DESCRIPTION

This example shows how to create a Performance Max retail campaign.

This will be created for "All products".

For more information about Performance Max retail campaigns, see
https://developers.google.com/google-ads/api/docs/performance-max/retail.

Prerequisites:
- You need to have access to a Merchant Center account. You can find
  instructions to create a Merchant Center account here:
  https://support.google.com/merchants/answer/188924.
  This account must be linked to your Google Ads account. The integration
  instructions can be found at:
  https://developers.google.com/google-ads/api/docs/shopping-ads/merchant-center.
- You need your Google Ads account to track conversions. The different ways
  to track conversions can be found here:
  https://support.google.com/google-ads/answer/1722054.
- You must have at least one conversion action in the account. For more about
  conversion actions, see
  https://developers.google.com/google-ads/api/docs/conversions/overview#conversion_actions.

=head1 SYNOPSIS

add_performance_max_retail_campaign.pl [options]

    -help                         Show the help message.
    -customer_id                  The Google Ads customer ID.
    -merchant_center_account_id   The Merchant Center account ID.
    -sales_country                [optional] The sales country of products to include in the campaign.
    -final_url                    [optional] The final URL for the asset group of the campaign.

=cut
add_performance_max_retail_campaign.pl
      

Campaign running status: For the campaign to run, at least one product has to be approved in Merchant Center. If not, the campaign status shows it is running when in reality it is not.

Troubleshooting: Log into Google Ads platform as the manager account. Navigate to a subaccount's Performance Max campaign and check the campaign settings. It may also help to look at the change history to confirm that you were the one that made the changes using Ads API.