Hi @theresa192422. Thanks for joining the thread.

I can help you add a category to your purchase order. Make sure to set up a default category for that supplier/vendor. This is the crucial step mentioned by @alex-b to add an account to your supplier purchase order detail.

Here's how:

1. Go to the Expenses menu and then select the Vendors section.
2. Choose the vendor in question.
3. Click the Edit button.
   
   
   
   
4. Scroll down and go to the Accounting section to choose a default account.
5. Hit Save.
   
   

Then you can cancel your PO and create a new purchase order to include an account detail.

If you've already tried all the steps shared by our fellow Community members and QuickBooks Team, I'd suggest contacting our QuickBooks Online Customer support. That way, they can further investigate the cause of the issue and help you record the purchase orders. Here's how:

1. Click the Help menu in the upper-right-hand corner and click Talk to a human.
2. Type in "Talk to a human", then press Enter.
3. Look for I still need a human and click on it.
4. Select Get help from a human.
5. Choose between Chat with us, Schedule an appointment, or Have us call you.

Please keep us updated here. I'll be checking your reply to help you more. Keep safe and more power to you!