Thanks for all the help. The answer was right in front of me and I just didn't see it. When I selected "convert to bill"  for some reason I was thinking if I edited the screen I would be editing the purchase order instead of the bill. Sorry, just one of those days or a brain cramp. My client usually receives inventory and I seldom do. I have used QB desktop for many years but still adjusting to QB Online.

Again: thanks everyone!