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 \"
For testing an app in Sand Box . Follow these steps
To test IAP ,we have to create a test user at itunesconnect.apple.com
Go to Settings and sign out from all active accounts (mail, iTunes & App Store , Game Center)
Restart your device.
Run your app on the device. Click on the IAP button -> choose existing account -> enter apple id and password created from step 1. Now everything will be fine.