I have a PO which we created a month ago. Now I want to add this PO to the account where it belongs. When I choose for add existing purchase order, it gives me the error "This record cannot be added because it already has a parent record.".
I am able to add the PO to a random account except the one I need to add it to.
What can be the cause for this problem? I tried to find out, but really don't have any idea about where to look now.