In-App Purchase in Flutter iOS platform - no subscriptions returns from AppStore

Question

I have a problem with retrieving my subscription list in a Flutter application.

• Official package in_app_purchase 3.1.5 is used
• Flutter version 3.7.6
• iOS 16.3.1
• Xcode 14.2
• Tested on a real device

Steps have been already done:

• Signing the Paid Applications Agreement and set up my banking and tax information in App Store Connect
• Creating non-consumable subscription (with id monthly_subscription) in app-store connect (in-app-purchase features). The subscription got the status “Ready to Submit”
• Adding In-App Purchase capability in Xcode (after this checked if In-App Purchase capability is selected at https://developer.apple.com/account/resources/identifiers/…. Selected.)
• Creating synced .storekit configuration file. My subscription was successfully loaded from the store to Xcode.
• Selecting this new-created storeKit in the edit scheme window (product - scheme - edit scheme - run - options - storeKit configurations) (Xcode)
• Tried to run the project from Xcode.
• Tried to run the project from Android Studio
• Tried to publish the app in testFlight and check the behavior, but no result, the same.
• Product ID is correct. In AppStore, Xcode, and Android studio.

The code:

final bool isAvailable = await _inAppPurchase.isAvailable(); // true


if (Platform.isIOS) {
  final InAppPurchaseStoreKitPlatformAddition iosPlatformAddition = _inAppPurchase.getPlatformAddition<InAppPurchaseStoreKitPlatformAddition>();
  await iosPlatformAddition.setDelegate(ExamplePaymentQueueDelegate());
}

final ProductDetailsResponse productDetailResponse = await _inAppPurchase.queryProductDetails(_kProductIds.toSet());

But, queryProductDetails method returns ProductDetailResponse with ID "monthly_subscription" in notFoundIds list.

And that’s all.

I suppose that’s not a Flutter or package issue. I think I misunderstood something in the manuals… ?

Answer 1

I had the same issue as you. Turns out that I was using the subscription group reference name as the _kproductId because I would beusing the equivalent for the Play Store with success I changed to use the individual reference name and voila! I hope that was the issue for you as well

Answer 2

Check paid app agreement is signed or not, it is also an important step that just slips through the cracks