When my app was tested on testflight for subscription, I never received the payment email. Is it because of the sandbox environment? Will I receive the payment email if I subscribe and pay after the release of the app
TestFlight uses the sandbox environment when testing your in-app purchases. Transactions and purchases that occur in the sandbox don’t incur charges. The App Store doesn’t send emails for purchases or refunds made in the test environments. For more information, see Testing at all stages of development with Xcode and the sandbox and Testing In-App Purchases with sandbox.