Observed Signal · Jan 26, 2026 · Deprecation · Source: https://www.blogger.com/feeds/7815614485808579332/posts/default?category=google_ads_api&orderby=published · Impact: 4/5 · Sentiment: Neutral
Time's Up: Migrate to Campaign Manager 360 API v5!
Google's Campaign Manager 360 API v4 will be sunset on February 26, 2026; from that date onward v4 API requests will start to fail. Developers and integrators using v4 are urged to migrate to v5 promptly to avoid service interruptions. Google points to a migration guide, updated client libraries, and v5 release notes for upgrade instructions and important changes. The post is authored by Lindsey Volta on behalf of the Campaign Manager 360 API Team and directs users to Campaign Manager 360 API support for questions.
A sunset/deprecation of an API from a major platform (Google) can cause service interruptions for integrations and requires migration to a newer API version; this impacts ad-serving workflows and developer teams.
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Key Takeaways & Evidence Grounding
- Campaign Manager 360 API v4 will be sunset on February 26, 2026.
- Starting February 26, 2026, all v4 API requests will begin to fail.
- Google recommends migrating to Campaign Manager 360 API v5 to avoid interruptions.
- Google links to a migration guide, client library updates, and v5 release notes for upgrade instructions.
- Questions should be directed to Campaign Manager 360 API support.
Connected Companies & Entities
1 Entity mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Google Ads API v21 Sunset August 5, 2026
Google announced that the Google Ads API v21 will be sunset on August 5, 2026; starting that date, all v21 API requests will begin to fail. Developers and advertisers using v21 must migrate to a newer Google Ads API version before August 5, 2026 to avoid interrupted access. The post links to migration resources including a version-migration guide and release notes, and describes how to use the Google Cloud Console (APIs & Services → Google Ads API → Metrics/Methods) to view recent API methods called by a project. Google offers support channels including Google Ads API support and a dedicated “Google Advertising and Measurement Community” Discord server. The announcement is authored by Ben Karl of Google’s Advertising and Measurement Developer Relations team.
Google Ads API v20 Sunset on June 10, 2026
Google announced that Google Ads API v20 will sunset on June 10, 2026; starting that date, all v20 requests will begin to fail. Developers and advertisers are advised to migrate to a newer API version before June 10, 2026 to avoid service disruption. Google published migration resources including a version-migration guide and release notes, and recommends using the Google Cloud Console to inspect which API methods a project has recently called. For support, Google points users to Google Ads API support and the “Google Advertising and Measurement Community” Discord. The post is authored by Ben Karl on behalf of the Google Ads API Team.
Google Ads API v22 Sunset Set for October 7, 2026
Google has announced that version 22 of the Google Ads API will sunset on October 7, 2026. After this date, all requests made to v22 will begin to fail, impacting advertisers, agencies, and ad tech platforms that rely on the API. Google advises users to migrate to a newer version prior to the sunset date to ensure uninterrupted access. The announcement provides resources such as upgrade guides, release notes, and Google Cloud Console usage metrics to help identify which methods and services are being called. The notice was published by Ben Karl on behalf of the Google Ads API Team on September 2, 2026.
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