Ads Data Hub (ADH)

What is Ads Data Hub?

If you want to know how many times a user saw your YouTube ad before converting through Search — the Google Ads interface won’t give you that answer. In Ads Data Hub, you ask such cross-channel questions via SQL, while Google’s privacy architecture ensures you never see individual user data. Setup requires Google Cloud access and SQL skills, but it’s worth it for high-volume accounts.

Ads Data Hub (ADH) is Google’s data clean room, running on Google Cloud, that allows advertisers to run granular analyses on their campaign data without gaining access to individual user data. In ADH, you can run custom SQL queries on event-level data from Google Ads, YouTube, and Display & Video 360, with results returned only in aggregated form.

The core value of ADH lies in analysis depth: you can answer questions that go beyond what the Google Ads interface provides. For example: How many times did a user see my ad before converting? Which combination of YouTube ad and search ad leads to the most conversions? How do my audiences overlap across different campaigns?

In practice, ADH is primarily relevant for larger advertisers, since setup and use require SQL skills and a Google Cloud account. Smaller accounts often don’t reach the minimum data volumes for aggregated results. However, if you have sufficient volume, ADH provides unique insights for Incrementality Testing, cross-channel attribution, and audience analysis that would otherwise be unavailable.