Hello, @htrllc.

Let me share additional information to help resolve the error you've received, @htrllc.

The error you've received usually happens when you're creating a purchase order or other expense type of transaction. You'd want to make to choose an account if you're using the Category details section. This way, you'll be able to save the purchase order without any errors.

You've got me here if you have other questions about navigating around QuickBooks. I'll be around to help. Have a good one!