Hi there, Randy. I appreciate adding your initial post here in the Community space. I am here to lend a hand with your concerns.
You did the usual process about the quantity adjustment when copying to a bill. Great work on that. However, the only way to close the transaction is to alter the amount within the purchase order.
You may consider consulting with your accountant to provide other options for closing it without altering the PO. I'll help you find an accounting professional if you don't have one. Feel free to follow these steps:
- Go to this link: https://quickbooks.intuit.com/find-an-accountant/.
- Enter your City or Zip code in the field provided.

- Click on Find a ProAdvisor.
I'm also adding this article to help track and manage vendor transactions in the program: Accounts Payable workflows.
If you have other questions in mind, post them here anytime. My colleague and I are always willing to help.