This is very tricky for me.
There are some infomation (such as L/C #, Seal #, Vessel #, Container # and etc) that we received after the invoices were created and sended to the customers. We invoiced the customer in advance before the items are shipped.
For tracking purposes, those information needs to be recorded in the system and displayed into these invoices (for custom clearance). Due to permissions issue; we can’t modify whatever that have been posted.
What is the best way to solve this problem?