Received "Cannot finish a purchasing transaction" error even though transaction state was checked prior to finishing.

Question

Created Oct ’16

Replies 2

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Participants 3

I have a crash reported in the sandbox environment due to "Cannot finish a purchasing transaction". Ok, I understand this part, however this is the only code in my entire application involving an SKPaymentQueue call to finishTransaction:

 if (transaction.transactionState != SKPaymentTransactionStatePurchasing) 
{
     [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
 
     // Unrelated code removed
}

Can anybody shed any light on how it might be possible for me to receive this error in light of the explicit validation above? The only thing I can think of is that the transaction state might be SKPaymentTransactionStateDeferred, and somehow this deferred transaction becomes a purchasing transaction with the exact perfect timing to cause the crash.

Any insight much appreciated! Thank you.

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Answer 1

PBK OP

Oct ’16

The error is telling you that you are not supposed to call finish Transaction on a transaction that has the state purchasing.

0

Answer 2

LDeane OP

Mar ’17

A belated thank you, sir.

0

	if (transaction.transactionState != SKPaymentTransactionStatePurchasing)
	{
	[[SKPaymentQueue defaultQueue] finishTransaction:transaction];

	// Unrelated code removed
	}