Previously, if any Google Ads API request had an invalid developer token, the API returned an OAUTH_TOKEN_HEADER_INVALID DEVELOPER_TOKEN_INVALID, for version v19.1 of the Google Ads API. All API versions before v19 will handle invalid developer tokens by throwing a DEVELOPER_TOKEN_NOT_APPROVED April 28, 2025 .
Anyone who has already set up the Google Ads API to make successful calls are highly unlikely to be affected by this change. It is mainly meant to improve the experience of new developers onboarding to the API.
If you have any questions, please ask them in the Google Ads API forum . We're here to help!
