I\'m developing in-app purchase using this excellent tutorial:
http://www.raywenderlich.com/21081/introduction-to-in-app-purchases-in-ios-6-tutorial
and I\'m getting an error \"
Almost a year late, but I'm facing the same problem right now. As far as I know, the best way to test the status of the iTunes Sandbox environment is checking this url:
http://sandbox.itunes.apple.com
An Http/1.1 Service Unavailable means SSErrorHTTPStatusCodeKey=503 in your debugger output.