AdWords API v201802 will be
sunset on January 30, 2019.
After this date, all v201802 API requests will begin to fail. We recommend that you skip v201806 and migrate directly to v201809. Please migrate prior to January 30, 2019 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.
Nadine Sundquist, Google Ads API Team