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Hi @LSPDFR ,
Welcome to the Google Cloud Community!
I have found these Stack Overflow threads that have a similar issue with yours:
- Request had invalid authentication credentials. Expected OAuth 2 access token error in cloud speech api
- Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential automl
- Google Ads API, PHP: “Request had invalid authentication credentials. Expected OAuth 2 access token…” Error
If the above options don’t work, you can contact Google Cloud Support to further look into your case. Thank you!