[Listing groups](https://support.google.com/google-ads/answer/11596074) are used in
Performance Max retail campaigns to specify which products to include or exclude
in each asset group. As such, listing groups are applied at the `AssetGroup`
level using
[`AssetGroupListingGroupFilter`](https://developers.google.com/google-ads/api/reference/rpc/v26/AssetGroupListingGroupFilter.md.txt)
objects. This is similar to other types of retail campaigns in which product
groups are applied at the `AdGroup` level.

All asset groups in Performance Max retail campaigns require a valid product
partition tree composed of `AssetGroupListingGroupFilter` objects. You can use a
single node tree that includes all products in the Merchant Center account to
meet this requirement.

This is referred to as [product
groups](https://support.google.com/google-ads/answer/6275317) in the UI. You can group
using multiple dimensions, letting you include or exclude products.

Consider the following tree, where at the first level, the products have been
divided by condition into New, Used and other product conditions. At the second
level, the products in other product conditions have been divided by brand as
"CoolBrand" products, "CheapBrand", and other brands.

![](https://developers.google.com/static/google-ads/api/images/shopping-listing-group-tree.png)

Each node in the tree is either a subdivision or a unit, as defined by
[`ListingGroupType`](https://developers.google.com/google-ads/api/reference/rpc/v26/ListingGroupTypeEnum.md.txt). A subdivision
introduces a new level in the tree, while units are leaves of the tree. Each
subdivision must always be completely partitioned, so it must contain a node
representing **Other** . In the example, the root and **Product Condition:
(Other)** nodes are subdivisions. This tree structure with subdivisions and
units lets you set bids at the unit level and also ensures that every
product falls into one and only one unit node in the tree.

You can only set bids on `AdGroupCriterion` where the associated
`ListingGroupInfo.type` is `UNIT`.

When an `AdGroupCriterion` has `negative`
set to the default `false`), and has a `ListingGroupInfo.type` set to `UNIT`,
you must provide a bid value if the ad group's bidding strategy requires bids at
the criterion level, such as Manual CPC. For example, you would need to set the
`cpc_bid_micros` field on an `AdGroupCriterion`. If you fail to provide a
required bid for a positive `UNIT` node, you will get an error.

Bids cannot be set on an `AdGroupCriterion` if the `ListingGroupInfo.type` is
`SUBDIVISION`. If the `AdGroupCriterion` has `negative` set to `true`, bids are
not applicable as it's an exclusion.

Nodes are objects of the [`ListingGroupInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ListingGroupInfo.md.txt)
class, which contains the
[`ListingGroupType`](https://developers.google.com/google-ads/api/reference/rpc/v26/ListingGroupTypeEnum.md.txt) field that indicates if
the nodes are unit or subdivision. Setting `ListingGroupInfo` to `listing_group`
of [`AdGroupCriterion`](https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroupCriterion.md.txt) will link it to the
[`AdGroup`](https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroup.md.txt).

You need at least one unit node to make a tree valid. That unit can be the root
node, which then becomes the "All Products" division. Ads won't serve until you
create a valid listing group tree.

## Performance Max listing groups

Listing groups in Performance Max campaigns work best when targeting
*groups* of products, so this should be preferred over targeting individual
products by item ID. You can use different
[dimensions](https://developers.google.com/google-ads/api/docs/shopping-ads/create-listing-groups.md.txt#available-dimensions-for-listingdimensioninfo)
such as [custom labels](https://support.google.com/google-ads/answer/6275295) or
[brand](https://support.google.com/merchants/answer/6324351) in your product feed to
group products.

> [!IMPORTANT]
> **Key Point:** Performance Max retail campaigns listing groups differ from standard Shopping campaigns. Listing group filters are not used to set bids (like in standard Shopping campaigns) but rather to include or exclude a set of products.

### Code example


### Java

```java
/**
 * Runs the example.
 *
 * @param googleAdsClient the Google Ads API client.
 * @param customerId the client customer ID.
 * @param assetGroupId the asset group id for the Performance Max campaign.
 * @param replaceExistingTree option to remove existing product tree from the passed in asset
 *     group.
 * @throws GoogleAdsException if an API request failed with one or more service errors.
 */
private void runExample(
    GoogleAdsClient googleAdsClient,
    long customerId,
    long assetGroupId,
    boolean replaceExistingTree)
    throws Exception {
  String assetGroupResourceName = ResourceNames.assetGroup(customerId, assetGroupId);

  List<MutateOperation> operations = new ArrayList<>();

  if (replaceExistingTree) {
    List<AssetGroupListingGroupFilter> existingListingGroupFilters =
        getAllExistingListingGroupFilterAssetsInAssetGroup(
            googleAdsClient, customerId, assetGroupResourceName);

    if (!existingListingGroupFilters.isEmpty()) {
      // A special factory object that ensures the creation of remove operations in the
      // correct order (child listing group filters must be removed before their parents).
      AssetGroupListingGroupFilterRemoveOperationFactory removeOperationFactory =
          new AssetGroupListingGroupFilterRemoveOperationFactory(existingListingGroupFilters);

      operations.addAll(removeOperationFactory.removeAll());
    }
  }

  // Uses a factory to create all the MutateOperations that manipulate a specific
  // AssetGroup for a specific customer. The operations returned by the factory's methods
  // are used to construct a new tree of filters. These filters can have parent-child
  // relationships, and also include a special root that includes all children.
  //
  // When creating these filters, temporary IDs are used to create the hierarchy between
  // each of the nodes in the tree, beginning with the root listing group filter.
  //
  // The factory created below is specific to a customerId and assetGroupId.
  AssetGroupListingGroupFilterCreateOperationFactory createOperationFactory =
      new AssetGroupListingGroupFilterCreateOperationFactory(
          customerId, assetGroupId, TEMPORARY_ID_LISTING_GROUP_ROOT);

  // Creates the operation to add the root node of the tree.
  operations.add(createOperationFactory.createRoot());

  // Creates an operation to add a leaf node for new products.
  ListingGroupFilterDimension newProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductCondition(
              ProductCondition.newBuilder()
                  .setCondition(ListingGroupFilterProductCondition.NEW)
                  .build())
          .build();
  operations.add(
      createOperationFactory.createUnit(
          TEMPORARY_ID_LISTING_GROUP_ROOT, createOperationFactory.nextId(), newProductDimension));

  // Creates an operation to add a leaf node for used products.
  ListingGroupFilterDimension usedProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductCondition(
              ProductCondition.newBuilder()
                  .setCondition(ListingGroupFilterProductCondition.USED)
                  .build())
          .build();
  operations.add(
      createOperationFactory.createUnit(
          TEMPORARY_ID_LISTING_GROUP_ROOT,
          createOperationFactory.nextId(),
          usedProductDimension));

  // This represents the ID of the "other" category in the ProductCondition subdivision. This ID
  // is saved because the node with this ID will be further partitioned, and this ID will serve as
  // the parent ID for subsequent child nodes of the "other" category.
  long otherSubdivisionId = createOperationFactory.nextId();

  // Creates an operation to add a subdivision node for other products in the ProductCondition
  // subdivision.
  ListingGroupFilterDimension otherProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductCondition(ProductCondition.newBuilder().build())
          .build();
  operations.add(
      // Calls createSubdivision because this listing group will have children.
      createOperationFactory.createSubdivision(
          TEMPORARY_ID_LISTING_GROUP_ROOT, otherSubdivisionId, otherProductDimension));

  // Creates an operation to add a leaf node for products with the brand "CoolBrand".
  ListingGroupFilterDimension coolBrandProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductBrand(ProductBrand.newBuilder().setValue("CoolBrand").build())
          .build();
  operations.add(
      createOperationFactory.createUnit(
          otherSubdivisionId, createOperationFactory.nextId(), coolBrandProductDimension));

  // Creates an operation to add a leaf node for products with the brand "CheapBrand".
  ListingGroupFilterDimension cheapBrandProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductBrand(ProductBrand.newBuilder().setValue("CheapBrand").build())
          .build();
  operations.add(
      createOperationFactory.createUnit(
          otherSubdivisionId, createOperationFactory.nextId(), cheapBrandProductDimension));

  // Creates an operation to add a leaf node for other products in the ProductBrand subdivision.
  ListingGroupFilterDimension otherBrandProductDimension =
      ListingGroupFilterDimension.newBuilder()
          .setProductBrand(ProductBrand.newBuilder().build())
          .build();
  operations.add(
      createOperationFactory.createUnit(
          otherSubdivisionId, createOperationFactory.nextId(), otherBrandProductDimension));

  try (GoogleAdsServiceClient googleAdsServiceClient =
      googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
    MutateGoogleAdsRequest request =
        MutateGoogleAdsRequest.newBuilder()
            .setCustomerId(Long.toString(customerId))
            .addAllMutateOperations(operations)
            .build();
    MutateGoogleAdsResponse response = googleAdsServiceClient.mutate(request);
    printResponseDetails(request, response);
  }
}

      
```

### C#

```c#
/// <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="assetGroupId">The asset group id for the Performance Max campaign.</param>
/// <param name="replaceExistingTree">Option to remove existing product tree
/// from the passed in asset group.</param>
public void Run(
    GoogleAdsClient client,
    long customerId,
    long assetGroupId,
    bool replaceExistingTree)
{
    GoogleAdsServiceClient googleAdsServiceClient =
        client.GetService(Services.V26.GoogleAdsService);

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

    // We use a factory to create all the MutateOperations that manipulate a specific
    // AssetGroup for a specific customer. The operations returned by the factory's methods
    // are used to optionally remove all AssetGroupListingGroupFilters from the tree, and
    // then to construct a new tree of filters. These filters can have a parent-child
    // relationship, and also include a special root that includes all children.
    //
    // When creating these filters, we use temporary IDs to create the hierarchy between
    // the root listing group filter, and the subdivisions and leave nodes beneath that.
    //
    // The factory specific to a customerId and assetGroupId is created below.
    AssetGroupListingGroupFilterCreateOperationFactory createOperationFactory =
        new AssetGroupListingGroupFilterCreateOperationFactory(
            customerId,
            assetGroupId,
            TEMPORARY_ID_LISTING_GROUP_ROOT
        );

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

    if (replaceExistingTree)
    {
        List<AssetGroupListingGroupFilter> existingListingGroupFilters =
            GetAllExistingListingGroupFilterAssetsInAssetGroup(
                client,
                customerId,
                assetGroupResourceName
            );

        if (existingListingGroupFilters.Count > 0)
        {
            // A special factory object that ensures the creation of remove operations in the
            // correct order (child listing group filters must be removed before their parents).
            AssetGroupListingGroupFilterRemoveOperationFactory removeOperationFactory =
                new AssetGroupListingGroupFilterRemoveOperationFactory(
                    existingListingGroupFilters
                );

            request.MutateOperations.AddRange(removeOperationFactory.RemoveAll());
        }
    }

    request.MutateOperations.Add(createOperationFactory.CreateRoot());

    request.MutateOperations.Add(
        createOperationFactory.CreateUnit(
            TEMPORARY_ID_LISTING_GROUP_ROOT,
            createOperationFactory.NextId(),
            new ListingGroupFilterDimension()
            {
                ProductCondition = new ListingGroupFilterDimension.Types.ProductCondition()
                {
                    Condition = ListingGroupFilterProductCondition.New
                }
            }
        )
    );

    request.MutateOperations.Add(
        createOperationFactory.CreateUnit(
            TEMPORARY_ID_LISTING_GROUP_ROOT,
            createOperationFactory.NextId(),
            new ListingGroupFilterDimension()
            {
                ProductCondition = new ListingGroupFilterDimension.Types.ProductCondition()
                {
                    Condition = ListingGroupFilterProductCondition.Used
                }
            }
        )
    );

    // We save this ID because create child nodes underneath it.
    long subdivisionIdConditionOther = createOperationFactory.NextId();

    request.MutateOperations.Add(
        // We're calling CreateSubdivision because this listing group will have children.
        createOperationFactory.CreateSubdivision(
            TEMPORARY_ID_LISTING_GROUP_ROOT,
            subdivisionIdConditionOther,
            new ListingGroupFilterDimension()
            {
                // All sibling nodes must have the same dimension type. We use an empty
                // ProductCondition to indicate that this is an "Other" partition.
                ProductCondition = new ListingGroupFilterDimension.Types.ProductCondition()
            }
        )
    );

    request.MutateOperations.Add(
        createOperationFactory.CreateUnit(
            subdivisionIdConditionOther,
            createOperationFactory.NextId(),
            new ListingGroupFilterDimension()
            {
                ProductBrand = new ProductBrand()
                {
                    Value = "CoolBrand"
                }
            }
        )
    );

    request.MutateOperations.Add(
        createOperationFactory.CreateUnit(
            subdivisionIdConditionOther,
            createOperationFactory.NextId(),
            new ListingGroupFilterDimension()
            {
                ProductBrand = new ProductBrand()
                {
                    Value = "CheapBrand"
                }
            }
        )
    );

    request.MutateOperations.Add(
        createOperationFactory.CreateUnit(
            subdivisionIdConditionOther,
            createOperationFactory.NextId(),
            new ListingGroupFilterDimension()
            {
                ProductBrand = new ProductBrand()
            }
        )
    );

    MutateGoogleAdsResponse response = googleAdsServiceClient.Mutate(request);

    PrintResponseDetails(request, response);
}

      
```

### PHP

```php
/**
 * Runs the example.
 *
 * @param GoogleAdsClient $googleAdsClient     the Google Ads API client
 * @param int             $customerId          the customer ID
 * @param int             $assetGroupId        the asset group ID
 * @param bool            $replaceExistingTree true if it should replace the existing listing group
 *                                             tree on the asset group
 */
public static function runExample(
    GoogleAdsClient $googleAdsClient,
    int $customerId,
    int $assetGroupId,
    bool $replaceExistingTree
) {
    // We create all the mutate operations that manipulate a specific asset group for a specific
    // customer. The operations are used to optionally remove all asset group listing group
    // filters from the tree, and then to construct a new tree of filters. These filters can
    // have a parent-child relationship, and also include a special root that includes all
    // children.
    //
    // When creating these filters, we use temporary IDs to create the hierarchy between
    // the root listing group filter, and the subdivisions and leave nodes beneath that.
    $mutateOperations = [];
    if ($replaceExistingTree === true) {
        $existingListingGroupFilters = self::getAllExistingListingGroupFilterAssetsInAssetGroup(
            $googleAdsClient,
            $customerId,
            ResourceNames::forAssetGroup($customerId, $assetGroupId)
        );
        if (count($existingListingGroupFilters) > 0) {
            $mutateOperations = array_merge(
                $mutateOperations,
                // Ensures the creation of remove operations in the correct order (child listing
                // group filters must be removed before their parents).
                self::createMutateOperationsForRemovingListingGroupFiltersTree(
                    $existingListingGroupFilters
                )
            );
        }
    }

    $mutateOperations[] = self::createMutateOperationForRoot(
        $customerId,
        $assetGroupId,
        self::LISTING_GROUP_ROOT_TEMPORARY_ID
    );

    // The temporary ID to be used for creating subdivisions and units.
    static $tempId = self::LISTING_GROUP_ROOT_TEMPORARY_ID - 1;

    $mutateOperations[] = self::createMutateOperationForUnit(
        $customerId,
        $assetGroupId,
        $tempId--,
        self::LISTING_GROUP_ROOT_TEMPORARY_ID,
        new ListingGroupFilterDimension(
            [
            'product_condition' => new ProductCondition(
                [
                'condition' => ListingGroupFilterProductCondition::PBNEW
                ]
            )
            ]
        )
    );

    $mutateOperations[] = self::createMutateOperationForUnit(
        $customerId,
        $assetGroupId,
        $tempId--,
        self::LISTING_GROUP_ROOT_TEMPORARY_ID,
        new ListingGroupFilterDimension(
            [
            'product_condition' => new ProductCondition(
                [
                'condition' => ListingGroupFilterProductCondition::USED
                ]
            )
            ]
        )
    );

    // We save this ID to create child nodes underneath it.
    $conditionOtherSubdivisionId = $tempId--;

    // We're calling createMutateOperationForSubdivision() because this listing group will
    // have children.
    $mutateOperations[] = self::createMutateOperationForSubdivision(
        $customerId,
        $assetGroupId,
        $conditionOtherSubdivisionId,
        self::LISTING_GROUP_ROOT_TEMPORARY_ID,
        new ListingGroupFilterDimension(
            [
            // All sibling nodes must have the same dimension type. We use an empty
            // ProductCondition to indicate that this is an "Other" partition.
            'product_condition' => new ProductCondition()
            ]
        )
    );

    $mutateOperations[] = self::createMutateOperationForUnit(
        $customerId,
        $assetGroupId,
        $tempId--,
        $conditionOtherSubdivisionId,
        new ListingGroupFilterDimension(
            ['product_brand' => new ProductBrand(['value' => 'CoolBrand'])]
        )
    );

    $mutateOperations[] = self::createMutateOperationForUnit(
        $customerId,
        $assetGroupId,
        $tempId--,
        $conditionOtherSubdivisionId,
        new ListingGroupFilterDimension(
            [
            'product_brand' => new ProductBrand(['value' => 'CheapBrand'])
            ]
        )
    );

    $mutateOperations[] = self::createMutateOperationForUnit(
        $customerId,
        $assetGroupId,
        $tempId--,
        $conditionOtherSubdivisionId,
        // All other product brands.
        new ListingGroupFilterDimension(['product_brand' => new ProductBrand()])
    );

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

    self::printResponseDetails($mutateOperations, $response);
}
      
```

### Python

```python
def main(
    client: GoogleAdsClient,
    customer_id: str,
    asset_group_id: int,  # Will be str for path construction
    replace_existing_tree: bool,
) -> None:
    """The main method that creates all necessary entities for the example.

    Args:
        client: an initialized GoogleAdsClient instance.
        customer_id: a client customer ID.
        asset_group_id: the asset group id for the Performance Max campaign.
        replace_existing_tree: option to remove existing product tree from the
            passed in asset group.
    """
    googleads_service: GoogleAdsServiceClient = client.get_service(
        "GoogleAdsService"
    )
    # asset_group_id is used as a string in path construction.
    asset_group_resource_name: str = googleads_service.asset_group_path(
        customer_id, str(asset_group_id)
    )
    operations: List[MutateOperation] = []

    if replace_existing_tree:
        # Retrieve a list of existing AssetGroupListingGroupFilters
        existing_listing_group_filters: List[AssetGroupListingGroupFilter] = (
            get_all_existing_listing_group_filter_assets_in_asset_group(
                client, customer_id, asset_group_resource_name
            )
        )

        # If present, create MutateOperations to remove each
        # AssetGroupListingGroupFilter and add them to the list of operations.
        if existing_listing_group_filters:
            remove_operation_factory = (
                AssetGroupListingGroupFilterRemoveOperationFactory(
                    client, existing_listing_group_filters
                )
            )
            operations.extend(remove_operation_factory.remove_all())

    create_operation_factory = (
        AssetGroupListingGroupFilterCreateOperationFactory(
            client,
            customer_id,
            asset_group_id,  # Pass as int, will be converted to str in __init__
            _TEMPORARY_ID_LISTING_GROUP_ROOT,
        )
    )

    operations.append(create_operation_factory.create_root())

    new_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    new_dimension.product_condition.condition = (
        client.enums.ListingGroupFilterProductConditionEnum.NEW
    )
    operations.append(
        create_operation_factory.create_unit(
            _TEMPORARY_ID_LISTING_GROUP_ROOT,
            create_operation_factory.next_id(),
            new_dimension,
        )
    )

    used_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    used_dimension.product_condition.condition = (
        client.enums.ListingGroupFilterProductConditionEnum.USED
    )
    operations.append(
        create_operation_factory.create_unit(
            _TEMPORARY_ID_LISTING_GROUP_ROOT,
            create_operation_factory.next_id(),
            used_dimension,
        )
    )

    # We save this ID because create child nodes underneath it.
    subdivision_id_condition_other: int = create_operation_factory.next_id()

    # All sibling nodes must have the same dimension type. We use an empty
    # product_condition to indicate that this is an "Other" partition.
    other_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    # This triggers the presence of the product_condition field without
    # specifying any field values. This is important in order to tell the API
    # that this is an "other" node.
    other_dimension.product_condition._pb.SetInParent()
    # We're calling create_subdivision because this listing group will have
    # children.
    operations.append(
        create_operation_factory.create_subdivision(
            _TEMPORARY_ID_LISTING_GROUP_ROOT,
            subdivision_id_condition_other,
            other_dimension,
        )
    )

    cool_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    cool_dimension.product_brand.value = "CoolBrand"
    operations.append(
        create_operation_factory.create_unit(
            subdivision_id_condition_other,
            create_operation_factory.next_id(),
            cool_dimension,
        )
    )

    cheap_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    cheap_dimension.product_brand.value = "CheapBrand"
    operations.append(
        create_operation_factory.create_unit(
            subdivision_id_condition_other,
            create_operation_factory.next_id(),
            cheap_dimension,
        )
    )

    empty_dimension: ListingGroupFilterDimension = client.get_type(
        "ListingGroupFilterDimension"
    )
    # This triggers the presence of the product_brand field without specifying
    # any field values. This is important in order to tell the API
    # that this is an "other" node.
    empty_dimension.product_brand._pb.SetInParent()
    operations.append(
        create_operation_factory.create_unit(
            subdivision_id_condition_other,
            create_operation_factory.next_id(),
            empty_dimension,
        )
    )

    response: MutateGoogleAdsResponse = googleads_service.mutate(
        customer_id=customer_id, mutate_operations=operations
    )

    print_response_details(operations, response)
      
```

### Ruby

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

  asset_group_resource_name = client.path.asset_group(
    customer_id,
    asset_group_id,
  )

  # We use a factory to create all the MutateOperations that manipulate a
  # specific AssetGroup for a specific customer. The operations returned by the
  # factory's methods are used to optionally remove all
  # AssetGroupListingGroupFilters from the tree, and then to construct a new
  # tree of filters. These filters can have a parent-child relationship, and
  # also include a special root that includes all children.
  #
  # When creating these filters, we use temporary IDs to create the hierarchy
  # between the root listing group filter, and the subdivisions and leave nodes
  # beneath that.
  #
  # The factory specific to a customerId and assetGroupId is created below.
  create_operation_factory = AssetGroupListingGroupFilterCreateOperationFactory.new(
    customer_id,
    asset_group_id,
    TEMPORARY_ID_LISTING_GROUP_ROOT,
  )

  operations = []

  if replace_existing_tree
    existing_listing_group_filters = get_existing_listing_group_filters_in_asset_group(
      client,
      customer_id,
      asset_group_resource_name,
    )

    if existing_listing_group_filters.length > 0
      # A special factory object that ensures the creation of remove operations
      # in the correct order (child listing group filters must be removed
      # before their parents).
      remove_operation_factory = AssetGroupListingGroupFilterRemoveOperationFactory.new(
        existing_listing_group_filters
      )

      operations += remove_operation_factory.remove_all(client)
    end
  end

  operations << create_operation_factory.create_root(client)

  operations << create_operation_factory.create_unit(
    client,
    TEMPORARY_ID_LISTING_GROUP_ROOT,
    create_operation_factory.next_id,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_condition = client.resource.product_condition do |condition|
        condition.condition = :NEW
      end
    end,
  )
  operations << create_operation_factory.create_unit(
    client,
    TEMPORARY_ID_LISTING_GROUP_ROOT,
    create_operation_factory.next_id,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_condition = client.resource.product_condition do |condition|
        condition.condition = :USED
      end
    end,
  )

  # We save this ID because we create child nodes underneath it.
  subdivision_id_condition_other = create_operation_factory.next_id

  operations << create_operation_factory.create_subdivision(
    client,
    TEMPORARY_ID_LISTING_GROUP_ROOT,
    subdivision_id_condition_other,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_condition = client.resource.product_condition do |condition|
        # All sibling nodes must have the same dimension type. We use an empty
        # ProductCondition to indicate that this is an "Other" partition.
      end
    end,
  )

  operations << create_operation_factory.create_unit(
    client,
    subdivision_id_condition_other,
    create_operation_factory.next_id,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_brand = client.resource.product_brand do |brand|
        brand.value = 'CoolBrand'
      end
    end,
  )
  operations << create_operation_factory.create_unit(
    client,
    subdivision_id_condition_other,
    create_operation_factory.next_id,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_brand = client.resource.product_brand do |brand|
        brand.value = 'CheapBrand'
      end
    end,
  )
  operations << create_operation_factory.create_unit(
    client,
    subdivision_id_condition_other,
    create_operation_factory.next_id,
    client.resource.listing_group_filter_dimension do |dimension|
      dimension.product_brand = client.resource.product_brand do |brand|
      end
    end,
  )

  response = client.service.google_ads.mutate(
    customer_id: customer_id,
    mutate_operations: operations,
  )

  print_response_details(operations, response)
end
      
```

### Perl

```perl
sub add_performance_max_product_listing_group_tree {
  my ($api_client, $customer_id, $asset_group_id, $replace_existing_tree) = @_;

  # We create all the mutate operations that manipulate a specific asset group for
  # a specific customer. The operations are used to optionally remove all asset
  # group listing group filters from the tree, and then to construct a new tree
  # of filters. These filters can have a parent-child relationship, and also include
  # a special root that includes all children.
  #
  # When creating these filters, we use temporary IDs to create the hierarchy between
  # the root listing group filter, and the subdivisions and leave nodes beneath that.
  my $mutate_operations = [];
  if (defined $replace_existing_tree) {
    my $existing_listing_group_filters =
      get_all_existing_listing_group_filter_assets_in_asset_group(
      $api_client,
      $customer_id,
      Google::Ads::GoogleAds::V26::Utils::ResourceNames::asset_group(
        $customer_id, $asset_group_id
      ));

    if (scalar @$existing_listing_group_filters > 0) {
      push @$mutate_operations,
        # Ensure the creation of remove operations in the correct order (child
        # listing group filters must be removed before their parents).
        @{
        create_mutate_operations_for_removing_listing_group_filters_tree(
          $existing_listing_group_filters)};
    }
  }

  push @$mutate_operations,
    create_mutate_operation_for_root($customer_id, $asset_group_id,
    LISTING_GROUP_ROOT_TEMPORARY_ID);

  # The temporary ID to be used for creating subdivisions and units.
  my $temp_id = LISTING_GROUP_ROOT_TEMPORARY_ID - 1;

  push @$mutate_operations,
    create_mutate_operation_for_unit(
    $customer_id,
    $asset_group_id,
    $temp_id--,
    LISTING_GROUP_ROOT_TEMPORARY_ID,
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        productCondition =>
          Google::Ads::GoogleAds::V26::Resources::ProductCondition->new({
            condition => NEW
          })}));

  push @$mutate_operations,
    create_mutate_operation_for_unit(
    $customer_id,
    $asset_group_id,
    $temp_id--,
    LISTING_GROUP_ROOT_TEMPORARY_ID,
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        productCondition =>
          Google::Ads::GoogleAds::V26::Resources::ProductCondition->new({
            condition => USED
          })}));

  # We save this ID to create child nodes underneath it.
  my $condition_other_subdivision_id = $temp_id--;

  # We're calling create_mutate_operation_for_subdivision() because this listing
  # group will have children.
  push @$mutate_operations, create_mutate_operation_for_subdivision(
    $customer_id,
    $asset_group_id,
    $condition_other_subdivision_id,
    LISTING_GROUP_ROOT_TEMPORARY_ID,
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        # All sibling nodes must have the same dimension type. We use an empty
        # ProductCondition to indicate that this is an "Other" partition.
        productCondition =>
          Google::Ads::GoogleAds::V26::Resources::ProductCondition->new({})}));

  push @$mutate_operations,
    create_mutate_operation_for_unit(
    $customer_id,
    $asset_group_id,
    $temp_id--,
    $condition_other_subdivision_id,
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        productBrand =>
          Google::Ads::GoogleAds::V26::Resources::ProductBrand->new({
            value => "CoolBrand"
          })}));

  push @$mutate_operations,
    create_mutate_operation_for_unit(
    $customer_id,
    $asset_group_id,
    $temp_id--,
    $condition_other_subdivision_id,
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        productBrand =>
          Google::Ads::GoogleAds::V26::Resources::ProductBrand->new({
            value => "CheapBrand"
          })}));

  push @$mutate_operations, create_mutate_operation_for_unit(
    $customer_id,
    $asset_group_id,
    $temp_id--,
    $condition_other_subdivision_id,
    # All other product brands.
    Google::Ads::GoogleAds::V26::Resources::ListingGroupFilterDimension->new({
        productBrand =>
          Google::Ads::GoogleAds::V26::Resources::ProductBrand->new({})}));

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

  print_response_details($mutate_operations, $response);

  return 1;
}
      
```

### curl

> [!NOTE]
> **Note:** While a direct REST code sample for this step isn't provided here, you can achieve this using a manual REST request.   
>
> Refer to the Google Ads API REST interface documentation and the method-specific reference pages. You will need to construct the JSON payload based on the proto definitions.   
>
> Key Resources:
>
> - [Using REST](https://developers.google.com/google-ads/api/rest/overview.md.txt)
> - [REST Interface Structure](https://developers.google.com/google-ads/api/rest/design/overview.md.txt)
> - [JSON Field Mappings](https://developers.google.com/google-ads/api/rest/design/json-mappings.md.txt)
> - Consult the [REST API Reference](https://developers.google.com/google-ads/api/reference/rpc/latest/overview) for the specific service and method.

<br />

## Available dimensions for ListingDimensionInfo

There are multiple listing dimensions that can be part of a Performance Max
listing group. The following `ListingDimensionInfo` types can be used with
Performance Max retail campaigns:

- [`ProductBrandInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductBrandInfo.md.txt)
- [`ProductCategoryInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductCategoryInfo.md.txt)
- [`ProductChannelInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductChannelInfo.md.txt)
- [`ProductConditionInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductConditionInfo.md.txt)
- [`ProductCustomAttributeInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductCustomAttributeInfo.md.txt)
- [`ProductItemIdInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductItemIdInfo.md.txt)
- [`ProductTypeInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductTypeInfo.md.txt)

Each resource includes a list of supported localizations in the
[`ProductCategoryConstant.ProductCategoryLocalization`](https://developers.google.com/google-ads/api/reference/rpc/v26/ProductCategoryConstant.ProductCategoryLocalization.md.txt)
field.
To understand the data returned by the resource, try the
[Get Product Category Constants example](https://developers.google.com/google-ads/api/samples/get-product-category-constants.md.txt).

**Other** unit nodes can be created by passing an empty object of
`ListingDimensionInfo` types to `ListingGroupInfo`.

> [!IMPORTANT]
> **Key Point:** **Custom Attribute** in Google Ads is the equivalent of [Custom Label](https://support.google.com/merchants/answer/6324473) in Google Merchant Center.

## Temporary IDs

Asset group criteria are not assigned IDs until the mutate request that creates
them is processed by the server. However, a `ListingGroupInfo` is invalid until
it is complete, so whenever you create a subdivision, you must also create at
least one of its children and an **Other** node in the same request.

In order to set the `parent_criterion_id` of
[`ListingGroupInfo`](https://developers.google.com/google-ads/api/reference/rpc/v26/ListingGroupInfo.md.txt) for the child nodes created
in the same request of the parent, you can use [temporary criterion
IDs](https://developers.google.com/google-ads/api/docs/mutating/best-practices#temporary-resource-names). These IDs apply
only within the context of a single mutate request. Any negative integer can be
used as a temporary ID.