The PO field on the planned Purchase order is a nice feature to firm to existing PO's.
But the field is as good as un-usable. It shows ALL po's in the world instead of filtering on the vendor and on the status being "open' to even allow a new line.
This has to be changed promptly.
In addition the search window that opens up only has the column PO number and vendor name.
It should have vendor ID , PO number and PO status.
THen this feature will become usable.