Hi.
I am facing the same problem. When I am clicking the Google Ads API to enable it, I am receiving the below error.
But I am quiet sure that I enable the API few days earlier.
Why this error is given?
How to resolve it?
I am running simple code, but getting the below error.
Fatal error: Uncaught Google_Service_Exception: { "error": { "errors": [ { "domain": "global", "reason": "authError", "message": "Invalid Credentials", "locationType": "header", "location": "Authorization" } ], "code": 401, "message": "Invalid Credentials" } }
............................
I am using the credentials 'secret.json' file which is active and I am using the correct client id and client secret as i found in the file as well as in APIs and Services Credentials console. The same information can be used without any error when I am using it with the OAuth Playground - https://developers.google.com/oauthplayground/.
Please help me to resolve the issue.
Thanks.