Google released version 24.1 of the Google Ads API, introducing deeper segmentation, expanded testing support, and new security features as advertisers continue to adapt to increasingly automated campaign environments.
This update also prepares developers for Google’s upcoming data storage policy changes, which will take effect next year.
Why do we care. The release focuses on three areas most important to marketers: performance visibility, creative control, and automated testing.
The update also gives brands more control over how creatives appear in Demand Gen campaigns, an area where automation often limits customization.
Marketers and developers who rely heavily on the reporting infrastructure will also need to prepare for Google’s upcoming 37-month data retention limit before it starts affecting historical performance analysis in 2026.
Mobile reporting is becoming more granular. Another big addition is a new mobile device platform feature that allows marketers to deliver reporting via operating system.
New use segments.mobile_device_platform field, developers can now isolate campaign and customer-level performance across iOS and Android traffic.
That’s important because user behavior often varies greatly between operating systems, especially for app marketers, ecommerce marketers, and conversion rate driven products.
Demand Gen adds classic image support. Google also gives advertisers intelligent control within Demand Gen campaigns.
The release adds support for static image ads using i classic_display_images field in DemandGenMultiAssetAdwhich allows brands to upload creatives that run on the Google Display Network exactly as designed, without the integration of AI-generated assets.
This feature seems to be aimed at marketers who want tighter control over brands and product launches.
Passkeys come from Google ads. Security is another major focus in v24.1.
Google has introduced a new passkey_enabled a field indicating that the user has enabled login key verification for their Google Ads account.
The update follows Google’s broader push toward passwordless authentication and increased protection against sensitive account activity.
Test support is growing. Google is greatly expanding its support for Experiments, one of the platform’s core testing frameworks.
Advertisers can now run and compare tests across sites:
- AI Max campaigns
- Video campaigns
- Search for Gen campaigns
- Performance Max campaigns
The release also adds more transparent reporting across test arms, including metrics like clicks, conversions, and impressions, making side-by-side analysis easier.
The move reflects Google’s broader strategy to standardize testing across its AI-driven campaign products.
A big change in data storage is coming. Google reiterated that as of June 1, Google Ads and related measurement APIs will move to a 37-month limit for granular reporting data, including daily, weekly, and hourly statistics.
To support the change, v24.1 introduces a new error code: DateRangeError.REQUESTED_DATE_GRANULARITY_NOT_SUPPORTED.
Developers querying older granular data sets will need to update the reporting workflow before the policy change takes effect.
What’s next. Google says updated client libraries and code samples for v24.1 are already available.
The company also hosts live streaming tours across Discord, YouTube Live, and LinkedIn Live.
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