Transportation Planning Point

Dear Experts,

I have few queries regarding trans plann point.

Can i define n nos of transportation planning point.

coz in

Transportation -- Shipment Costs -- Settlement -- Assign Purchasing Data

i am getting error while creating different purchasing org,diff purc group with diff plant coz i have already assigned defined transportation planning point with shipment cost - purc org - pur grp - plant.

System is not allowing me to create different purc org with same transportation plann point.

While creating shipment cost document system picks up shipment cost - purc org - pur grp - plant from --

--===Transportation -- Shipment Costs -- Settlement -- Assign Purchasing Data

We have n nos of purc org with diff pur grp, as well as plant.

Guys please suggest.

Thanks

Shri..