Closing a PO with receives

Closing a PO with receives

I have POs that have Receives (in Inventory module) against them.  I want to close them.  Zoho won't let me close them if they have receives against them.  I also can't edit them to change the number of items delivered (so they show completed) because Zoho says there are receives against them.  How can I close out these POs?

-Tom