third party PO problem.
I am trying to create a Third party PO against one of my company codes .for that purpose , i have defined plant as vendor .
I want the material to be directly dispartched to customer by that plant with reference to third party PO.
But system is giving me error that
'Third-party not defined in the case of vendor with plant assignment.'
You are entering a purchase transaction involving a vendor to whom a plant has been assigned. Normally, this will involve the transfer of materials from one plant to another.
This process necessitates a delivery and a billing document in the SD system. The PO appears directly in the delivery due list of the issuing plant (vendor) and therefore does not need to be transmitted.
However, an item with the procurement form "third-party" (triangular business deal) cannot appear in the delivery due list.
An item with the procurement form "third-party" can only be ordered from vendors without a plant assignment.
please help me to sort out this