• AP and Cash issue - An invoice was paid once by check and a second cash ACH sent after the check didn't clear, then the vendor refunded the overpayment

    We paid an invoice three months ago by paper check for say, $100. The check didn't arrive to the vendor, and so we then paid the invoice by ACH for $100. The ACH cleared, and then they also received and cashed the check. When the vendor realized they…