Crediting an invoice in Synergy is to apply a discount. There may be instances where an invoice was previously raised and an agreement has been made to discount the invoice by either a dollar amount or by a percentage.
Crediting and cancelling an invoice in Synergy are two different functions!
A write-off is used in circumstances where payment for an invoice is not recoverable. The entire invoice amount will be reduced to $0 and no profits are recorded.
To cancel is essentially to void a finalised invoice. Sometimes an invoice is issued to a client with an error and needs to be reissued with corrections. Cancelling or voiding an invoice will return all attached transactions back to WIP and allow for re-invoicing.
An invoice number can be reused if required. Detailed steps can be found in our help article 'Cancel or void an invoice and reuse the invoice number'.