Google Ads API v16 will be deprecated on February 5, 2025. Post this date, all v16 API requests will cease to function. Users must transition to a newer version to avoid disruptions.
To review your API interactions:
- Analyze your recent requests on the METRICS tab, detailing methods, services, and versions used.
- Navigate to APIs & Services in the Google Cloud Console.
- Select Google Ads API.

To know more, read the article here: Google Ads API v16 sunset reminder.