Final answer:
A debit memo is a document or transaction that reduces the amount of accounts payable due to a vendor.
Step-by-step explanation:
A debit memo is a document or transaction that reduces the amount of accounts payable due to a vendor. It is typically used when there is an overpayment or a return of goods. Debit memos are used to adjust the amount owed to the vendor and reduce the accounts payable balance.