Thank you for your recommendation. I read this documentation and many more but I can not find information about what types of In-App purchases we should receive server notifications for. For example, documentation says we can receive notification with type SUBSCRIBED that can also have subtype INITIAL_BUY, which means the user either purchased or received access through Family Sharing to the subscription for the first time. ( https://developer.apple.com/documentation/appstoreservernotifications/notificationtype#possibleValues ) While we receive this type of notification for Auto-Renewable Subscription I would also expect to receive this notification for Non-Renewing Subscription as well, which is not the case. Also when I check subscriptions of my sandbox user it does not show Non-Renewing Subscriptions even though purchase was successfull and it is listed in the latest_receipt_info of notification body.