Hello, Thank you for reaching out. Could you please confirm whether the MCC account associated with the customer against which you are trying to make the API calls was deleted on your end? If yes, I recommend you to generate a new OAuth2 credentials by selecting a new user with admin/standard access from the new manager account. The guide includes the "Configure and use a client library" section which has a step-by-step guide in generating the refresh token depending on the client library that you are using. If you are still facing issues, please share the complete request and response logs along with the email address used to generate the OAuth2 credentials for me to investigate this further on our end.
P.S. Please use Reply privately to author option while sharing the details. Regards, Nikisha Patel, Google Ads API Team ref:_00D1U1174p._5001UXTvbn:ref -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com 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 adwords-api+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/oinA3000000000000000000000000000000000000000000000Q6MULY00ZCVu0OykQJeAXtrEziBNtA%40sfdc.net.