Google Ads API v6 will sunset on September 8, 2021. After this date, all v6 API requests will begin to fail. Please migrate to a newer version prior to September 8, 2021 to ensure your API access is unaffected.

We've prepared various resources to help you with the migration: If you have questions while you’re upgrading, please reach out to us on the forum or at googleadsapi-support@google.com.
 - , Google Ads API Team