We desire to document customer contact/communications regarding specific past-due invoices in Accounts Receivable. Is there a facility to do this at the invoice level?

Frequently, we receive verbal confirmation from a customer that a past-due invoice has been approved for payment, only to not have it paid in subsequent remittance batches. Since there are so many invoices to collect, we need a facility to contemporaneously document these conversations/communications on each invoice.

Any advice will be appreciated. Thanks!