Comment by Rafsark

Yes, it's currently part of our scope. I think the hardest part of credit notes is whether the invoice is paid or still to be paid. If I'm taking the example of an invoice to be paid, you can issue a credit note that can overwrite the amount of the invoice. However, if the invoice is paid, you can either refund or assign credits to a customer. The hardest part here is to know what to do when adjusting a past invoice