Google is rolling out a new Data Manager API designed to help advertisers more easily connect their first-party data to Google’s AI-powered ad tools — aiming to boost measurement, targeting and performance without the complexity of juggling multiple systems.

Why we care. The Data Manager API makes it easier to feed high-quality first-party data into Google’s AI, which directly improves targeting, measurement, and bidding performance. By replacing multiple APIs with one streamlined connection, it reduces engineering work and speeds up how quickly insights flow back into campaigns. As cookies fade, this becomes a key tool for getting better results from the data advertisers already have.

Driving the news. The Data Manager API unifies what previously required multiple Google platform APIs, creating one centralized integration point for advertisers, agencies and developers.

Marketers can use it to:

  • Upload and refresh audience lists
  • Send offline conversions to improve measurement
  • Enhance bidding performance by feeding Google AI richer signals

It extends Google’s existing codeless Data Manager tool, which tens of thousands of advertisers already use to activate first-party data.

Partnership push. To speed adoption, Google is launching with integrations from AdSwerve, Customerlabs, Data Hash, Fifty Five, Hightouch, Jellyfish, Lytics, Tealium, Treasure Data, Zapier and others.

State of play. The API is available starting today across Google Ads, Google Analytics and Display & Video 360, with more product integrations on the way.

The bottom line. Advertisers who adopt the Data Manager API will give Google’s AI better fuel, improve measurement, reduce engineering complexity, and unlock stronger performance — all while preparing for a privacy-first future.


Search Engine Land is owned by Semrush. We remain committed to providing high-quality coverage of marketing topics. Unless otherwise noted, this page’s content was written by either an employee or a paid contractor of Semrush Inc.


Anu AdegbolaAnu Adegbola

Anu Adegbola has been Paid Media Editor of Search Engine Land since 2024. She covers paid search, paid social, retail media, video and more.

In 2008, Anu started her career delivering digital marketing campaigns (mostly but not exclusively Paid Search) by building strategies, maximising ROI, automating repetitive processes and bringing efficiency from every part of marketing departments through inspiring leadership both on agency, client and marketing tech side. Outside editing Search Engine Land article she is the founder of PPC networking event – PPC Live and host of weekly podcast PPC Live The Podcast.

She is also an international speaker with some of the stages she has presented on being SMX (US, UK, Munich, Berlin), Friends of Search (Amsterdam, NL),…


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Last Update: December 9, 2025