Aggregate Reporting API
Google's Aggregated Reporting API and Conversion Measurement API provide aggregate data from a Google-controlled server. These APIs are designed to provide marketers aggregate reach and conversion reporting, given marketers using Privacy Sandbox will not have event-level visibility into the media they purchase.
Google's server will provide time-delayed, aggregated metrics only after at least 24 hours have elapsed from the actual events.
By providing publishers time-delayed information, their ability to A/B test and assure quality of changes to their website will be impaired.
By providing marketers time-delayed information, they more of their budget will continue to be spent on publishers providing relatively lesser value.
- Will frequency reporting be available in addition to reach?