# refundTransaction(identifier:) Simulates a refund for an in-app purchase that completes outside of the app. ``` func refundTransaction(identifier: Int) throws ``` ## Parameters `identifier` The transaction [`identifier`](/documentation/StoreKitTest/SKTestTransaction/identifier) of an in-app purchase to get a refund. ## Discussion In the testing environment, the system always approves refund requests, and processes them immediately. You can choose the reason for the refund by using in your app and selecting a reason. (Your app may also use , , or . If your app uses SwiftUI, it may use .) Otherwise, the refund reason defaults to . After calling this function, handle the new transaction in or in your payment queue. Look for the and properties, which indicate the refund. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)