Error using PayPal Standard

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Il y a 15 ans
Hi,

I am using NopCommerce and PayPal Standart in Sandbox.  I get error "This invoice has already been paid. For more information, please contact the merchant." from PayPal, when I tried to buy item.

PayPal says ex "Order Number 5" and order leaves in pending state in NopConverce.

The problem can be that for some reason paypal isn't accepting the invoice numbers, which are being created as 1, 2, 3....

In other xxxxCommerce they solved it using 'PayPal IPN ID' as invoice number.  Unfortunatly I am so beginner that I cannot find how to correct the problem.
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Il y a 15 ans
Hi,

I am googling a bit.  This error can maybe happen when you have used same invoice number before for same email.  Here is 2 links:

http://www.pdncommunity.com/pdn/board/message?board.id=sandbox&message.id=898&query.id=126924#M898

http://forums.oscommerce.com/index.php?showtopic=189451

Setting 'Profile->Payment Receiving Preferences titled, 'Block accidental payments: NO' did not help me:(
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This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.