Recording of reminder fees for a creditor invoice

You have received an invoice from a supplier that you have not paid within the given timeframe and you receive a reminder with associated charges. How do you enter these reminder fees?

Two situations may occur:

• The supplier has sent you a new invoice including the reminder charges: in this case, delete the original invoice and enter the new invoice.
• The supplier has only sent you a reminder without a new invoice: in this case, create an item for the reminder charges and modify the original invoice by adding this “item”.