Observed Signal · Aug 14, 2026 · Policy Update · Source: https://www.blogger.com/feeds/7815614485808579332/posts/default?category=google_ads_api&orderby=published · Impact: 4/5 · Sentiment: Positive
Google Ads changes language targeting in Sept 2026
Google announced changes to language targeting in Google Ads effective late September 2026. Search and AI Max for Search campaigns will no longer use a campaign-level language setting; search ads will match based on the language of the ad creative (and user language signals). For Performance Max campaigns, the campaign-level language setting will no longer apply on Google Search (language matching will use ad language) but will continue to guide delivery on other channels like YouTube, Display, Discover, and Gmail. The Google Ads API will continue to return language criteria when queried, but attempts to mutate language criteria for Search campaigns will produce a ContextError.OPERATION_NOT_PERMITTED_FOR_CONTEXT. Google recommends stopping the practice of setting language criteria for new Search campaigns and focusing on ad and landing page language.
A platform-level targeting change from Google affects Search and Performance Max behavior and the Google Ads API; it impacts campaign setup, API integrations, and how advertisers control language targeting across major ad channels.
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Key Takeaways & Evidence Grounding
- Effective late September 2026, Search and AI Max for Search campaigns will no longer use a campaign-level language targeting setting; search ads will match based on the language of the ads.
- For Performance Max campaigns, the campaign-level language setting will no longer be used for ads shown on Google Search but will continue to guide delivery on other channels (YouTube, Display, Discover, Gmail).
- The Google Ads API will still return language criteria when querying, but mutating CampaignCriterion.language for Search campaigns will result in ContextError.OPERATION_NOT_PERMITTED_FOR_CONTEXT.
- Google recommends stopping the inclusion of language criteria when creating or updating new Search campaigns and advises ensuring ad creatives and landing pages are clearly structured by language.
- When multiple eligible campaigns exist, AI-based ad group prioritization will select the most relevant ad language.
Connected Companies & Entities
1 Entity mapped“Historically, the language criterion in the Google Ads API allowed you to manually specify target languages for your campaigns....”
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