Hello Simba, Thank you for reaching out. The NOT_ADS_USER error usually occurs when the login user account / email address used to generate the OAuth Credentials is not associated with any Google Ads account.
Could you please confirm if you’ve indeed followed every step of the guide, specifically the prerequisites? If your service account has been correctly configured, please provide the complete request and response logs with request ID where you have encountered an error as well as the user account/email address that you're trying to set up so I can better investigate your concern. However, kindly note that we strongly recommend using OAuth2 installed app or web flows instead of service accounts unless you need domain-specific features (for example, impersonation). OAuth2 installed application and web flows require user interaction only once, when access to the account is granted. You need to implement the code set up on your end to make calls using service accounts. Reminder: Share your feedback about the Google Ads (AdWords) API! Take the 2021 Google Ads API and AdWords API Annual Survey Best regards, Jakeia Sabrina Google Ads API Team ref:_00D1U1174p._5004Q2RA6ll: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/rrkDF000000000000000000000000000000000000000000000R2SC0J00PKfHQKUiQm6P9mEXXTwmkQ%40sfdc.net.