App Store
StoreKit sandbox vs production
StoreKit sandbox and production are Apple's two purchase environments. Sandbox and TestFlight purchases are always sandbox; a real App Store purchase is production. Attribution behaves differently in each, so tests must match the environment an app is registered for.
Every StoreKit purchase carries an environment. TestFlight and StoreKit testing always emit sandbox; only a real App Store purchase emits production. There is no way to produce a production event before the app is live.
An Attribloom app is registered as Sandbox or Production. A Production app rejects sandbox notifications and writes nothing, which proves the isolation. A Sandbox app accepts them and records the conversion as a test, excluded from real payouts.
This lets you prove the whole pipeline safely in sandbox first, then confirm one real production sale once the instrumented build ships.
Frequently asked
Can I test the production attribution path with TestFlight?
No. TestFlight purchases are always sandbox. A production accrual only exists after a real App Store purchase on a live build. Test in sandbox first, then confirm one real sale.
What happens if a sandbox purchase hits a production app?
Attribloom returns a status that ignores the non-production notification and writes nothing to the ledger. Register a sandbox app to see accruals from sandbox purchases.