Vendor invoice double-paid after a system glitch in our Dallas office
Last Tuesday I caught a duplicate $4,800 payment to our packaging supplier because their invoice number changed by one digit between two batches. I froze the second wire within an hour and called their AP team, but they already credited our account so now we're chasing a refund against next month's order. Has anyone else dealt with payment gateway hiccups that slip through your approval queue, and what checks do you run before releasing funds?
we had this exact thing pop up back in March, same deal with a vendor invoice that got scanned twice by our portal and the system added a .01 to the second one. caught it because our AP guy runs a daily report that flags any invoice with the same vendor name and a PO number within 5 cents of each other. that caught the duplicate before it even hit the bank. also made a rule that any wire over 2 grand needs two signatures, one from accounting and one from ops, so even if the system glitches theres a human checking the actual invoice number against the batch log. the refund chase is brutal though, we ended up just having them deduct it from the next PO and sending a formal credit memo so our auditor had the paper trail.