We're having problems with the Sandbox Server URL for the App Store Server Notifications. Unfortunately, we're not getting any callbacks from Apple Server while making in app purchase(Non-Renewing Subscription).
HyJames
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution