Hmm... didn't run into that problem in testing. Just to confirm, are you in the U.S. and which PayPal service are you trying to use here? Express Checkout or Website Payments Standard?
Re: Paypal error "This invoice has already been paid."
Paypal error "This invoice has already been paid." (4 replies) Fri, 08/31/2007 - 04:10
- Re: Paypal error "This invoice has already been paid." (02/27/2008 - 18:58)
- Re: Paypal error "This invoice has already been paid." (08/31/2007 - 15:28)
- Finally found the cause. I (09/03/2007 - 05:21)
- Hi Ryan Thank you for your (09/01/2007 - 02:15)
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Joined: 08/07/2007