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Question

TestFlight App Shows Error Fetching Offerings on Test Flight RevenueCat Integration

  • January 30, 2026
  • 1 reply
  • 9 views

princeajuzie
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I’m having an issue where my RevenueCat paywall works perfectly in the iOS Simulator, but fails to load on real devices via TestFlight. This is my first app and first time setting up in-app subscriptions.

What works

  • In the iOS Simulator, the paywall loads correctly.

  • All products appear and I can simulate purchases.

  • Product IDs match exactly between App Store Connect and RevenueCat.

  • The RevenueCat offering is active and includes the correct products.

What fails

  • On a real device using TestFlight, the paywall does not load.

  • RevenueCat returns a configuration error (Error 23 / products not found).

  • No products are returned from Apple in TestFlight.

App Store Connect setup

  • Subscriptions are created in App Store Connect and currently in “Ready to Submit” / “Waiting for Review” state.

  • I have accepted all agreements in App Store Connect (Paid Applications, Tax, Banking are active).

  • The subscription is attached to the current app version under In-App Purchases and Subscriptions.

  • This is my first app, and none of my subscriptions have ever been approved by Apple yet.

What I’ve tried

  • Uploading multiple new TestFlight builds.

  • Deleting the app from device and reinstalling TestFlight.

  • Creating new sandbox test users.

  • Deleting and recreating subscriptions (multiple times).

  • Verifying StoreKit configuration is set to None for TestFlight builds.

  • Double-checking entitlements and offerings in RevenueCat.

Observations

  • The issue only happens on TestFlight / real devices.

  • Everything works in the simulator, which makes debugging confusing.

  • It seems Apple is returning zero valid products in the sandbox environment, even though the subscriptions exist and are configured.

Question

Is it required that at least one subscription must be fully approved by Apple App Review before RevenueCat (or StoreKit) can reliably return products in TestFlight?

If so, is this expected behavior for first-time apps, where TestFlight will fail until the first IAP is approved?

 

1 reply

guilherme
RevenueCat Staff
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  • RevenueCat Staff
  • February 3, 2026

Hey ​@princeajuzie, thanks for that breakdown and for sharing those details.

All looks good from your described setup, and the “Ready to Submit” state should be enough to test through. This error can be due to the testing environment and the account used to do so, as for TestFlight:

TestFlight is a hybrid environment that uses production Apple Accounts but purchases occur in sandbox, which can cause unexpected issues that are very likely undocumented by Apple.

more here

Could you confirm/check if your account setup is a Production one and not Sandbox? See how it behaves then?

All these environments and different quirks can be tricky to follow along, but we have a comprehensive guide here that should help: https://www.revenuecat.com/blog/engineering/the-ultimate-guide-to-subscription-testing-on-ios/

Let me know how that testing goes though! Happy to dig further here.