Wednesday, March 4, 2026


Starting on April 1, 2026, the Google Ads API will no longer accept new adopters of [Customer Match](https://developers.google.com/google-ads/api/docs/remarketing/audience-segments/customer-match/get-started.md.txt). As with our recent announcement for the use of [session attributes and IP address](https://developers.google.com/ads/blog/posts/2026/01/changes-to-ip-address-and-session.md.txt) in click conversions in the Google Ads API, we're recommending that new adopters of Customer Match integrate with the [Data Manager API](https://developers.google.com/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](https://developers.google.com/google-ads/api/docs/get-started/make-first-call.md.txt#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` or `UserDataService`.
- See the documentation for integrating with the Data Manager API for Customer Match imports for [Google Ads](https://developers.google.com/data-manager/api/devguides/audiences/google-ads/customer-match.md.txt).

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Reach out to the [Google Ads API support](https://developers.google.com/google-ads/api/support.md.txt) or [Data Manager API support](https://developers.google.com/data-manager/api/support.md.txt) 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](http://goo.gle/ads-and-measurement-discord).

![Portrait of the author](https://developers.google.com/static/ads/blog/images/AOh14GhFLgYJAFpYHUS1kBcLzMIT2gKkUyYcjWCuOWM3=s600-p.jpg) - Ben Karl, on behalf of the Google Ads API Team


**Labels:**

[customer-match](https://developers.google.com/ads/blog/feeds/labels/customer-match.md.txt),

[data-manager-api](https://developers.google.com/ads/blog/feeds/labels/data-manager-api.md.txt),

[google-ads](https://developers.google.com/ads/blog/feeds/labels/google-ads.md.txt),

[google-ads-api](https://developers.google.com/ads/blog/feeds/labels/google-ads-api.md.txt)