Duplicate order on Magento v 188.8.131.52., triggered by:
PayPal API error code 10486
In short, the site responds to this error appropriately and as said in the doc: when the buyer's first payment is denied, the buyer is redirected back to PayPal.
(PayPal has confirmed this behavior, and told me to contact the developers in charge of this extension to report on this issue).
The problem seems to be linked to that redirection, which creates two orders in Magento (the two payment attempts — the first being denied by PayPal — are interpreted as two different orders/invoices. The buyer is charged once.).
Thus, in the backend (Sales > Orders) we can see for the same transactionid (PayPal) :
- 2 different order ID numbers (magento)
- 2 different correlationid
- a « Completed » vs. « completed » payer address status (different syntax)
- an « IPN "Completed" » comment noticed on the first order
What could be done to solve this?
Thanks for helping!