I appreciate you doing the steps provided by my colleagues, Novice338.

I'd suggest reaching out to our customer care support since you're still encountering the same issue after trying the steps. They have more tools to investigate this further. Here's how:

1. Click Help inside QuickBooks.
2. Go to QuickBooks Desktop Help.
3. Click Contact Us.
4. Enter "Remove purchase order status" in the description field, then click Continue.
5. Select either Start messaging or Get a callback. 

I like to share the reference about the A/P workflow in QuickBooks Desktop since purchase orders are part of it.

You're always welcome to visit us if you have other concerns. We're just a post away.