i'm sure this is an easy fix, but i'm not sure how/what to do...
I have a Small VS C# console app that creates invoices in SAGE 50 for me.
When i enter a existing customer name all is good, but if i make a mistake and the customer does not exist, it just creates the invoice anyways using the name i put.
the invoice comes out posted as "paid" and its not linked to a customer account its just "there"
is there an option to insure a invoice cannot be generated if the customer does not exist?