Update vendor invoice
From Protemos Wiki
Vendor Invoice update page: http://cloud.protemos.com/vendor-invoice/update?id=ХХХХ
On this page, you can update the details of the invoice.
The availability of fields for editing depends on the status of the invoice.
If you the invoice has not yet been marked as sent, you can edit “Payment method”, “Due date” and “Notes” fields.
For sent invoices, you can edit only “Notes”.