Valuation type requirement at STO

Hi Friends,

We have a scenario in stock transfer as follows,

Material is split valuated( say valuation type as Traded and Manufactured).The valuation type for the material maintained at receiving plant is TRADED and for the same material at supplying plant maintained as MANUFACTURED.

While creating STO( PO with doc type UB) , system is picking valuation type in the PO as TRADED.

While posting out bound delivery and goods issue from supplying plant, system will pick valuation type as MANUFACTURED.

While receiving the goods at receiving plant( MIGO u2013with respect to Out bound delivery), system is picking valuation type as TRADED but not MANUFACTURED.

But client requirement is that, while posting GR w.r to out bound delivery , system should always pick valuation type which is maintained at supplying plant(in this example valuation type MANUFACTURED) but not from the PO(STO).

How to achieve the same