I'm using a test account while waiting for production developer token application to get approved.
I have the config file set up as directed, with my new OAuth info entered here (scrubbed):
<add key="OAuth2ClientSecret" value="xxxxxxxxxxx" />
I am using the test manager account as "ClientCustomerId" in the config file
<add key="ClientCustomerId" value="xxxxxxxxxxx" />
When I click "Authorize User" I'm able to allow the test manager account "Manage your AdWords campaigns".
I then put in the test client account I created and click "Get Campaigns". I get this error and am not sure what to try next.
Failed to get campaigns. Exception says "AdWordsApiException: One or more AdWords API errors have occurred. User doesn't have permission to access customer.. (Error: AuthorizationError.USER_PERMISSION_DENIED, FieldPath: , Trigger: ) "
Any assistance would be appreciated. Thanks