Google confirmed API v20 will stop accepting requests on June 10, 2026. Any advertiser, tool or agency still running on v20 will experience complete service disruption unless they migrate to v21 or later before the deadline.
This is not a feature deprecation. It is a full shutdown. There is no partial compatibility.
Google Ads API v20 will stop working on June 10, 2026. Every request sent to v20 after that date will fail. No grace period, no fallback.
Google announced the sunset on April 29 as part of their shift to a monthly release cycle for the Ads API. The pace of deprecation has accelerated. Where Google previously maintained API versions for 12 months or more, the cadence is now tighter. If your tools or agency integrations are still running v20, you have 38 days.
Until Google Ads API v20 stops accepting all requests
What breaks
Anything that calls the Google Ads API on v20 will return errors on June 10. That includes bid management platforms, reporting dashboards, automated rules, scripts and any custom integrations built on v20 endpoints.
If you use a third-party tool (like a bid management platform or reporting suite), confirm with your vendor that they have already migrated. If you run custom scripts or internal tools, your development team needs to update the API version references and test before the deadline.
Why it matters
The monthly release cycle means these sunsets will keep coming faster. Google is pushing the ecosystem toward continuous migration rather than annual upgrades. For agencies managing multiple client accounts through custom tooling, this is a recurring operational cost that needs to be budgeted.
For Australian businesses using smaller agencies or freelancers for Google Ads management, the risk is that your provider has not noticed the announcement. Ask the question now.
What to do about it
The deadline is June 10. If your campaigns rely on API-connected tools and those tools are still on v20, your ads will stop optimising on that date. That is not a warning. It is a countdown.