Cancel invoice = create copy of the invoice but with negative amount
I am in EU and using VAT add on for invoicing.
I have some invoices that have been issued and need to cancel them.
Cancel = create copy of the invoice but with negative amount.
Also this invoice should keep in note original invoice number that it is canceling.
Canceled invoice gets a new invoice number as if it were a regular invoice.
Items in invoice are exact as in original (the one being canceled).