We have issues fully understanding the receipt validation flow in iOS.
Here is what we currently do (in development):
we validate the receipt on the server side, if there is no receipt or the receipt is invalid, we try to refresh the receipt and revalidate it.
Here are some issues/questions:
- What are the cases where there is no receipt available on the device ?
- Should we always issue a receipt refresh request when there is no receipt ?
- Why is this alert box sometimes shown on startup ? I understand this is shown on a receipt refresh request ?
- When should a receipt verification happen ? We currently do it whenever a purchase is made to verify the purchase, is this correct usage ?