https://developer.apple.com/documentation/technotes/tn3138-handling-app-store-receipt-signing-certificate-changes#Test-your-app-receipt-validation-in-the-sandbox-environment Test your app receipt validation in the sandbox environment Starting June 20, 2023, the sandbox environment produces app receipts that are signed using the SHA-256 intermediate certificate for apps running in iOS 16.6, tvOS 16.6, watchOS 9.6, and macOS 13.5. Follow these steps to test how your app handles the receipts。 If you test the in app purchase in the sandbox environment. If the result is successful, you should not deal with it.