Replicating figures from App Store Connect using Analytics Reports via App Store Connect API

We have recently ingested data using the App Store Connect API for:

  • App Store Discovery and Engagement
  • App Store Downloads

I'm unable to match figures from fairly basic reports and I can't understand where I'm going wrong.

For example: Running figures from App Store Connect > Analytics > Metrics > Product Page Views, with no filters, for a given date (e.g. 1 July 2025) - I get a completely different figure (smaller, almost half the volume) than when I try to use the data from the App Store Discover and Engagement report for the same date. For reference, I am looking at the sum of counts when event = Page view and page type = Product page.

It's a similar thing for First-Time Downloads.

Am I missing something obvious?

Replicating figures from App Store Connect using Analytics Reports via App Store Connect API
 
 
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