PayPal - this invoice has already been paid

This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.
Hace 13 años
Do we know why we are getting from time to time this message when you using SANDBOX PAYPAL ??
What makes PayPal believe that that specific transaction has already been handled?
Hace 13 años
I think it's order number (1,2,3,...)

https://www.nopcommerce.com/boards/t/8455/restarting-order-id.aspx
This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.