Customer Cash Receipt Entry - Detail - Debits overview
Use this page to enter a debit memo to be applied against an existing invoice.
The amount of the debit memo is applied to the amount of the invoice, and a new scheduled payment transaction(s) is created in the Customer transaction file.
Use debit memos to increase the amount of an existing invoice (freight charges, and so on). You can apply debit memos to invoices or service charges. The invoice number of the debit memo has a suffix of 99 to indicate that it was entered through the Customer module.