RE: user account associated with adwords API calls

Hi Langfei, The client ID/client secret are generated specific to one's email address. If you use an existing client ID/client secret to make an API call, the email address who owns this will be recorded in your change history. Hope that clarifies your concern. Regards, Luis AdWords API Team

RE: user account associated with adwords API calls

Hi Langfei, To make sure that developer B is using its own credentials, you must make sure that developer B generates its own OAuth2 credentials using its own email address that has access to your Google Ads account. This