i created one third party sales order with material X and Plant 001 , than one PR is genrated automatically , now with refrance to this PR i created one PO , and did MIGO ..
Now i want to change plant in sales order and also want to add one more line item .
material X with plat 002 and
material Y with plant 002
now what i need to do for same keeping same PR and PO.
( i dont want to create new PO )