How do I delete a PO in Quickbooks On line?

bring up the PO, use the more button/link at the bottom and select delete

Hi @Anonymous,

Thanks for posting in the Community. I'd be glad to help you delete a PO in QuickBooks Online. 

There are times when a transaction, such as a purchase order, will need to be deleted from a QuickBooks Online account. Here are the steps to delete a purchase order:

1. Open up the purchase order.
2. Select More at the bottom of the screen and choose Delete.
3. Click Yes that you want you to delete the transaction.

I've included a brief video to serve as a demonstration:

For additional context on this, such as when to void or delete a transaction, I suggest the following link: How to Void or Delete an Invoice or Other Transactions.

I'm sure that you'll have the purchase order deleted in no time. 

Let me know if you need anything else. Wishing you all the best.