Compounded Infoobject

Hi,

I need 0MATERIAL and 0MAT_PLANT infoobjects in my cube.

I am mapping MATNR with both 0MATERIAL and 0MAT_PLANT.

But when I map WERKS with 0MAT_PLANT I get <b>ERROR "Rule 13 (target: 0MAT_PLANT): Source parameter 0011 is not being used”.</b>

My question is Do I need to map WERKS with 0MAT_PANT or only MATNR will do ?

Regards

Shilpa