bkochis Posted April 15, 2007 Share Posted April 15, 2007 I get this error when I send any invoices to PayPal IPN. 'This invoice has already has been paid' comes back no matter what I do. I tried searching for the error message, but the volume of posts related to this contribution is immense. Thanks in advance. :blink: Quote Link to comment Share on other sites More sharing options...
FnF Posted April 15, 2007 Share Posted April 15, 2007 Same here......it has to do with invoice id'ing. The text file included in the contribution gives a couple fixes, ones is a hack, and one is to disable invoice sync in your paypal account....which will allow people to pay twice if anything goes wrong. I read till my eyes bled...and said forget it.... and uninstalled it Quote Link to comment Share on other sites More sharing options...
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