System Limits

This page lists various limits in the Google Ads API along with the corresponding error that is thrown when the limit is exceeded. General product limits, such as the number of campaigns per account, is listed in the Google Ads Help Center.

Note: UTF-8 encoding is used when calculating byte limits for string values.

Account
Maximum number of Google Ads accounts in a manager account hierarchy	Value Varies Error ManagerLinkError.TOO_MANY_ACCOUNTS Prevention See About maximum account limits for manager accounts for more details.
Maximum number of test accounts in a manager account hierarchy	Value 50 Error ManagerLinkError.TOO_MANY_ACCOUNTS Prevention N/A
Maximum number of manager accounts a Google Ads account can be managed by	Value 5 Error ManagerLinkError.TOO_MANY_MANAGERS Prevention See About manager linking errors for more details.
Maximum number of levels in a hierarchy, from top-level manager account to bottom-most Google Ads account	Value 6 Error ManagerLinkError.MAX_DEPTH_EXCEEDED Prevention See About manager linking errors for more details.
Maximum number of pending manager account invitations in the same hierarchy	Value 20 Error ManagerLinkError.TOO_MANY_INVITES Prevention See About manager linking errors for more details.
Name length	Value 255 characters Error StringLengthError.TOO_LONG Prevention N/A

Ads
Headline length	Value 30 characters Error AdError.LINE_TOO_WIDE Prevention See About text ads for more details.
Description1 or description2 length	Value 90 characters Error AdError.LINE_TOO_WIDE Prevention See above.
Path1 or path2 length	Value 15 characters Error AdError.LINE_TOO_WIDE Prevention See above.
Final URL length	Value 2,084 bytes Error StringLengthError.TOO_LONG Prevention A protocol prefix (such as "https://") is required for final URLs and is counted against this limit.

Ad group
Name length	Value 255 bytes Error AdGroupError.INVALID_ADGROUP_NAME Prevention N/A

Campaign budget
Maximum number of shared budgets in an account	Value 11,000 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention The budgets limit is 1,000 more than the number of campaigns limit to allow for some room in reassigning budgets if needed. There is no restriction on the number of campaigns that can share a budget.
Maximum number of unshared budgets in an account	Value 20,000 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention These are budgets that are associated with a specific campaign, and cannot be shared between campaigns.

Campaign
Maximum number of bidding strategies attached to ad groups per campaign	Value 1,000 Error ResourceCountLimitExceededError.CAMPAIGN_LIMIT Prevention N/A
Name length	Value 128 bytes Error StringLengthError.TOO_LONG Prevention N/A

Conversion upload
Maximum number of offline click conversions that can be uploaded per API call	Value 2,000 Error ConversionUploadError.TOO_MANY_CONVERSIONS_IN_REQUEST Prevention For performance reasons, we limit the number of conversions that can be uploaded per API request to 2,000.

Criterion
Keyword length	Value 80 characters Error CriterionError.KEYWORD_TEXT_TOO_LONG Prevention N/A
Placement URL length	Value 250 characters Error CriterionError.PLACEMENT_URL_IS_TOO_LONG Prevention Protocol prefixes (such as "http://") are stripped from placement URLs and are not counted towards this limit.
Final URL length	Value 2,047 bytes Error StringLengthError.TOO_LONG Prevention The protocol prefix (such as "http://") is counted towards this limit.
Proximity radius	Value 800 km / 500 mi Error CriterionError.INVALID_PROXIMITY_RADIUS Prevention N/A
Maximum number of Shopping ad groups in a single request that modifies the structure of the ProductPartition tree.	Value 2 Error AdGroupCriterionError.OPERATIONS_FOR_TOO_MANY_SHOPPING_ADGROUPS Prevention This limit does not apply to operations on ProductPartition criteria changes that do not modify the structure of the tree. For example, a request that only modifies the bids of existing partitions can contain operations for more than two Shopping ad groups.If you want to modify the structure of the ProductPartition tree for more than two Shopping ad groups, consider using batch jobs, where this restriction does not apply.
Excluded IP blocks per campaign	Value 500 Error ResourceCountLimitExceededError.CAMPAIGN_LIMIT Prevention N/A

Feed
Feeds per account	Value 100 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention We recommend using only one feed per extension type whenever possible.
Feed items per account	Value 5,000,000 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention N/A
Feed attributes per feed	Value 30 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention N/A
Feed items per matching function	Value 20 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention N/A

Label
Maximum number of labels that can be applied to accounts by a manager account	Value 200 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention N/A
Maximum number of accounts a label can be applied to	Value 1,000 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention N/A
Maximum number of labels that can be applied to entities (campaigns, ad groups, etc.) per account	Value 100,000 Error ResourceCountLimitExceededError.CAMPAIGN_LIMIT, ADGROUP_LIMIT, etc. Prevention Labels for all entity types count towards the same limit.
Maximum number of labels that can be applied to a single entity (campaign, ad group, etc.)	Value 50 Error ResourceCountLimitExceededError.CAMPAIGN_LIMIT, ADGROUP_LIMIT, etc. Prevention N/A

Listing groups
Maximum number of listing groups per ad group	Value 20,000 Error ResourceCountLimitExceededError.RESOURCE_LIMIT Prevention N/A

Payments account
Maximum number of billing setups that can be linked to a payments account	Value 75,000 Error BillingSetupError.PAYMENTS_ACCOUNT_INELIGIBLE Prevention N/A

Performance Max
Maximum number of Performance Max campaigns in one account	Value 100 Error ResourceCountLimitExceededError.ACCOUNT_LIMIT Prevention See maximum account limits for more details. Contact your Google business development representative for a possibly higher limit.
Maximum number of asset groups in one campaign	Value 100 Error ResourceCountLimitExceededError.RESOURCE_LIMIT Prevention N/A
Maximum number of listing group filters in one campaign	Value 1,000 Error ResourceCountLimitExceededError.RESOURCE_LIMIT Prevention N/A
Maximum number of listing group filter subdivisions in one campaign	Value 7 Error AssetGroupListingGroupFilterError.TREE_TOO_DEEP Prevention N/A