The value in this field indicates the status of the Purchase Order in the system.
The status can be as follows:
New - for a PO that has not been edited in the Purchase Order Section.
Sent - for a PO that has been sent already.
Part Receipt - for a PO that has been partially received.
Closed - ok - for a PO that has been received completely without any differences.
Closed - difference - for a PO that has been received completely with differences.