You can cancel an Invoice if it has not yet been sent to the client and has not been used by the client’s accountant. To do so, select the Invoice from the list of issued invoices and click the “Cancel” button. The Invoice will not disappear from your account but will be reported to the Tax Authority with the status “Canceled”.
If the Invoice has already been sent or used by the accountant, it is recommended to issue a Credit Note for the full amount of the Invoice. To do this, select the Invoice from the list of issued invoices and click on “Add Credit Note” In the document, specify the reason, such as "Invoice error", "The client will not pay" or another relevant justification. If the Credit Note is issued for the same amount as the Invoice, this effectively cancels the Invoice.
After canceling the Invoice or issuing a Credit Note due to incorrect data, you can generate a new Invoice with all the correct details.