PayPal Duplicate Transaction Message
Previous  Top  Next

PayPal returns a duplicate transaction error even though it is not a duplicate. This usually happens when the same PayPal account has been used on more than one AShop installation.

1.   There is a Block accidental payments setting at PayPal.com under Profile > Payment Receiving Preferences. Change it to allow multiple payments per invoice ID.

clip10082

2.Change the starting orderid number to a higher number such as 1000 or 10000. This can be done from a command line or with the aid of a database management tool such as phpMyAdmin.