We added several Google AdWords Accounts to the Advertising Analytics service without problems. We wanted to add more accounts but when we authenticate the oauth token we get the error message "EXTERNAL_API_ERROR: Unable to Create/update AMO search account for imsOrgId = 12345@AdobeOrg globalCompanyKey : fti1 amo_user_id = xxxx due to external api error. Error message returned by AMO search account api= 'Login does not have access to the Advertising Account'"
All the accounts used for the oauth token authentification have admin status in the adwords accounts. The credentials are for a single account and not for the MMC and the account ID is correct, too. We tried the process with at least 6 different AdWords accounts.
So I'm wondering if there is a problem with the API on Googles side?