Hello, The unauthorized_client error usually occurs when you are using incorrect OAuth credentials. Could you also try the CURL request provided below and see if you are able to generate the access tokens? That will help you confirm the validity of your OAuth2 credentials.
curl https://www.googleapis.com/oauth2/v4/token \ -d refresh_token=MCC_refresh_token \ -d client_id=your-client-id \ -d client_secret=your-client-secret \ -d grant_type=refresh_token If OAuth credentials are not generated correctly, you could generate them by following this guide <https://developers.google.com/adwords/api/docs/guides/first-api-call#set_up_oauth2_authentication>. Please give this a try and let me know if you are able to fix the issue. Regards, Sai Teja, AdWords API Team. -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog: https://googleadsdeveloper.blogspot.com/ =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/b702b191-8d8e-453e-995a-f2f9f5fc8dbe%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
