My app has already passed the review process. I am now trying set up some in-app purchases through Unity IAP for iOS devices. Registering the various product IDs, the initialization process seems to have passed successfully. However, when I tried to make a purchase using an iPad connected to a Mac, I received an error message on XCode saying:
UnityIAP: No App Receipt foundThe purchase failed. The reason given for the error was: Unknown.
On the Unity editor, the purchase did go through without any problem.
So what could be the reason? What is an App Receipt? How should I go about pinpointing the source of the problem? Must I first test the IAP in a sandbox environment?
