Attempts to purchase an SKProduct or restore all completed transactions via the usual method calls in StoreKit leads to failure in the beta environment with the following error: Error Domain=SKErrorDomain Code=0 "An unknown error occurred" UserInfo={NSLocalizedDescription=An unknown error occurred, NSUnderlyingError=0x300b10210 {Error Domain=ASDErrorDomain Code=500 "(null)" UserInfo={NSUnderlyingError=0x300b10090 {Error Domain=AMSErrorDomain Code=301 "Invalid Status Code" UserInfo={NSLocalizedDescription=Invalid Status Code, AMSURL=https://sandbox.itunes.apple.com/WebObjects/MZBuy.woa/wa/inAppBuy?REDACTED, AMSStatusCode=500, NSLocalizedFailureReason=The response has an invalid status code}}}}} We've tried with existing sandbox user accounts, and created fresh ones which also fail in a similar way. Our beta testers report the same thing. Nothing has changed in our IAP code, and this started happening about 24-48 hours ago. It seems to be a server-side error - please can someone verify on Apple's side?