An object in the payment queue.
- iOS 3.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
A payment transaction is created whenever a payment is added to the payment queue. Transactions are delivered to your app when the App Store has finished processing the payment. Completed transactions provide a receipt and transaction identifier that your app can use to save a permanent record of the processed payment.