Question

In my iPhone app Im using StoreKit to make it possible for users to buy subscriptions in the app. The problem I’m having is that suddenly everytime I start the app SKPaymentTransactionStatePurchased is sent to the observer so the app tries to buy the subscription again and again. And if I try to buy the subscription again from the list of subscriptions in the app I get a message saying “You’ve already purchased this In App Purchase but it hasn’t been downloaded.” then failedTransaction is called with SKErrorPaymentCancelled.

EDIT: I have now found a lot of threads about this in the Apple Developer Forum, for example: https://devforums.apple.com/thread/73818 and /thread/73572, it seems like a lot of developers have the same problem..

This is the code I’m using, can you see something wrong with it?

-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    for (SKPaymentTransaction *transaction in transactions)
    {
        switch (transaction.transactionState)
        {
        case SKPaymentTransactionStatePurchased:
            [self completeTransaction:transaction];
            break;
        case SKPaymentTransactionStateFailed:
            [self failedTransaction:transaction];
            break;
        case SKPaymentTransactionStateRestored:
            [self restoreTransaction:transaction];
            default:
            break;
        }
    }
}

-(void) failedTransaction: (SKPaymentTransaction *)transaction
{
    if (transaction.error.code != SKErrorPaymentCancelled)
    {
        NSLog(@"Error"); 
    } else {
        NSLog(@"Cancel");
    }
    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

-(void) restoreTransaction: (SKPaymentTransaction *)transaction
{
    [self subscribe:transaction];
}

-(void) completeTransaction: (SKPaymentTransaction *)transaction
{
    [self subscribe:transaction];
}

-(void)subscribe: (SKPaymentTransaction*)transaction { 
    NSInteger errorCode = //Connects to my server that verifies receipt with Apple server etc..
    if (errorCode==0) {
        [self provideContent];
    }
    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

Answer 1

After talking to Apple support I was able to solve this issue. It seems to be a problem from Apple that has now been fixed.