I appreciate you for get trying the steps shared above, Mary512.

At this time, I'd recommend reaching out to our Phone Support team so an agent can take a look at your file and verify why the system is not recognizing the closed sales order correctly.

You can  get in touch with our phone agents through this article: Contact QuickBooks Desktop support.

Once everything's fine, you can bookmark this article as your guide in managing sales order:  Fulfill a Sales Order.

The Community team is always up to help you out!