Superwall Subscription Not Syncing with RevenueCat on iOS (Flutter)

Question

I have integrated Superwall for handling subscriptions in my Flutter app. To purchase a subscription, I use the Superwall paywall and have connected Superwall to RevenueCat to retrieve active subscription details.

Expected Behavior

1. User purchases a subscription via Superwall.
2. Retrieve active subscription details from RevenueCat using Purchases.getCustomerInfo().
3. Update subscription details in Firebase.

Problem

• This works fine on Android, but on iOS, RevenueCat does not show the active subscription in the dashboard after a successful purchase via Superwall.

• Even Purchases.getCustomerInfo() does not return any active subscription details.

• Strangely, when I use a test account (test.subscription@gmail.com), which is submitted as a test account in iOS, it returns the active subscription data after a few minutes, but for any other account, it does not return any active subscription.

What I Have Tried

• Ensured that Superwall is successfully processing the purchase (it shows as successful).
• Checked RevenueCat’s logs and dashboard, but no active subscription is listed for non-test accounts.
• Verified the integration of Superwall with RevenueCat following their official documentation.
• Made sure Purchases.getCustomerInfo() is called correctly after purchase.

Questions

• Why is RevenueCat not detecting the active subscription immediately on iOS, while it works on Android?
• Why does it work only for a specific account and not for all accounts?
• Are there any delays or manual steps required to sync Superwall purchases with RevenueCat on iOS?
• Is there a way to force RevenueCat to refresh the subscription status immediately after a purchase?

Setup Details

1. Flutter version: 3.22.0
2. Superwall version: superwallkit_flutter: ^1.3.9
3. RevenueCat SDK version: purchases_flutter: ^8.4.3
4. platform :ios, '14.0'