Hello!
As agency we are running multiple ad accounts under single AdWords MCC.
We have Python application that returns daily Ad Performance reports on each account via API. We use single client_id, client_secret, developer_token and refresh_token for all accounts, only changing client_customer_id.
We noted that for some accounts API returns null values, although for others it returns data. Also according to web interface the requested data exists and has to be returned via API.
What could be possible reasons for getting null values in reports? Could something be wrong with the ad account itself?
Thank you.