Starting on April 1, 2026, the Google Ads API will no longer accept new adopters of Customer Match . As with our recent announcement for the use of session attributes and IP address in click conversions in the Google Ads API, we’re recommending that new adopters of Customer Match integrate with the Data Manager API as their primary user data import API.
Developers who have not adopted Customer Match, or have not uploaded data to a Customer Match list between October 2025 and March 2026, will receive an error if they attempt to upload to a Customer Match list. Developers who have already adopted Customer Match can continue importing user data using the Google Ads API while they integrate with the Data Manager API.
Technical details
Developers will be allowlisted by their developer token .
Once this change is rolled out, users who are not on the allowlist will receive the error CUSTOMER_NOT_ALLOWLISTED_FOR_THIS_FEATURE when attempting to upload user data to a Customer Match list using either the OfflineUserDataJobService UserDataService See the documentation for integrating with the Data Manager API for Customer Match imports for Google Ads .
Reach out to the Google Ads API support or Data Manager API support channels if you have any questions.
If you have any questions or want to discuss this post, please reach out to us on our “Google Advertising and Measurement Community” Discord server .
