US Patent 12020302 Subscription framework feedback channel

Technologies are disclosed herein for providing asynchronous application store event notifications. An application developer registers with an application store to receive asynchronous push notifications for application store events of interest, such as events relating to in-application purchases, payment events, fulfillment events, application publishing events, or other types of events. When an event for which a notification is to be provided is detected, an application store event message is generated for the event and provided to a notification service. The notification service generates an application store event notification for the event on a topic defined in advance by the application developer. The application store event notification may then be delivered to an endpoint defined by the application developer, such as a hypertext transfer protocol (HTTP) endpoint. Alternately, the application store event notification may be placed on a queue defined by the application developer that is provided by a queue service.