3814709 - What happens when I add a negative batch item to an American Express Expense Pay Batch?

One of our users was able to submit a negative balance report that contained refund/credit items from their corporate American Express card. How does Expense Pay and American Express reconcile these negative(credit) items and how will they show up in Concur?

Article explaining how American Express handles negative batch items with Expense Pay. They are fairly unique in that they allow submission of negative batch items in their payment batches and use the negative items to offset other items in the batch , KBA , CON-EXP-ADM-COB , Configure Batches , CON-CA-USP-CRC , Credit Cards , Problem