Google Ads API v20 will sunset on June 10, 2026. Starting on this date, all v20 API requests will begin to fail, and advertisers must migrate to a newer version before this deadline to maintain uninterrupted API access.
Advertisers can view their recent API calls via the Google Cloud Console by selecting APIs & Services, then Google Ads API, and checking the Metrics subtab for their recent request data.
Read the official announcement here: Google Ads API v20 sunset reminder.