Running QB pro 2006
I have a customer that I had started out just putting under "CASH" which I use for the occasional walk in. He has now turned into a regular customer. I created a new customer for him. I would like to change all the old invoices over to the new name, however, when I edit an old invoice from "CASH" to "ABC Corp" then QB deletes the payment to the old invoice. I don't know where it puts it either. Is there a way to do this? Easily?
Maybe 10-20 invoices over the last 2 years.