For auto-renewable subscriptions, it is necessary to call the transaction completion after the purchase. I understand that this needs to be called at the correct timing. StoreKit v1: https://developer.apple.com/documentation/storekit/in-app_purchase/original_api_for_in-app_purchase/finishing_a_transaction Question If the transaction does not finish for a long period, is the purchase cancelled and a refund issued? If so, how long is this period? For example case1: When I renewed the auto-renewable subscription from the OS settings app but did not open my own app. case2: When there was a malfunction in my own app. Similar forum https://developer.apple.com/forums/thread/656255