Detail: PO Item
For sources of AP only, with a cost type other than Subcontract.
If the template sequence’s sort and summary options require this information, this field will default the PO item number based on the JC detail. If the template sequence does not require this information, this field is disabled.
If entering the sequence manually, and the template sequence requires this information, specify the PO item number for this detail line. This must be a valid vendor from AP Vendors.