Return delivery problem in UD of subcontracted material

Hey Gurus,

I am doin a return delivery of subcontratced material in UD. The split valuation of the material is on and the valuation type is mentioned in PO as well as while doing the migo the valuation type is maintained. Now when i am saving after posting few quantity in the return delivery, i am getting an error msg that valuation type not defined. Where can i maintain the valuation type ?

Regards,

Abhishek