Delivery costs on Raw material cost estimates

Dears,

it seems that it's possible applying surcharges on raw material cost estimates through MM condition types.

I did the customizing in my costing variant using a new MM contition type (%) and a new origin group.

I assigned the origin group to material masters, but nothing happened when i ran the cost calculation. I mean, costs were determined without additional surcharges.

Did I miss something?

Can somebody please confirm that my aim is achievable?

Thanks for your help,

Enrico