We are a wholesale type of business that has a normal invoice assigned for 99% of our customers.  However, there is one customer that requires a custom invoice.  We receive hundreds of orders for them weekly and have to manually change each one over to the custom invoice, since you can only have one preferred form set.

I was wondering if there is a way, through workflow, to grab that customer's invoices when they come through the system.  Then automatically switch those invoices over to the custom one.  I have built a workflow that automatically populates their required fields only when their company name appears.  All of this is done on our current invoice which leaves these fields blank for all other customers.  The problem is that our management does not like these blank fields showing up, hence the new custom form for this particular customer.