I have issued a series of invoices for one customer, now I want to convert one of the invoices to credit memo to previous invoice. i.e. Iwant to sue the same invoice number but as credit memo, is it possible?
I don't think it is a good accounting practice to change an invoice into credit memo or delete an invoice . my recommendation is let the invoice be there and create a credit memo against that invoice; which is the usual treatment of invoices.