Keep App Store Connect. Erdi pulls the sales reports Apple already generates and plots downloads, updates and proceeds under your releases.
Downloads, updates and proceeds as daily series. Apple's reports lag by two days; Erdi sets that lag on the series so the chart hatches the incomplete edge instead of drawing a zero. The first Analytics report can take up to 48 hours to appear after you create the key — nothing shows before then.
An App Store Connect API key (.p8), issuer ID, key ID, vendor number and the app's Apple ID. The private key is stored encrypted. Erdi signs requests with ES256. This is a pull, not a webhook from Apple.
Ratings, crashes, TestFlight, and customer reviews. Those stay in App Store Connect. In-app purchases that you already send through RevenueCat should not be pulled twice.
Set it up under Settings → Sources in your project.