In MoneyWorks a credit note to a customer is entered as a negative sales invoice—the window title will change to Debtor’s Credit Note. It will (when posted) appear in the receivables list until it is offset against another invoice from the same debtor — see Contra Invoices.
For a credit note involving products, you should enter a negative quantity—if these are stocked items, they will be brought back into stock (at their current stock average value) when the credit note is posted.
