21000
The App Store could not read the JSON object you provided
21002
The data in the receipt-data property was malformed or missing
21003
The receipt could not be authenticated
21004
The shared secret you provided does not match the shared secret on file for your account
21005
The receipt server is not currently available
21006
This receipt is valid, but the subscription has expired. When this status code is returned to your server, the receipt data is decoded and returned as part of the response. Only returned for iOS 6 style transaction receipts for auto-renewable subscriptions
21007
This receipt is from the test environment, but it was sent to the production environment for verification. Send it to the test environment instead
21008
This receipt is from the production environment, but it was sent to the test environment for verification. Send it to the production environment instead
21010
This receipt could not be authorized. Treat this the same as if a purchase was never made
21100 - 21199
Internal data access error