How to create Material variant

Dear all,

I created configurable material and assigned class and BOM and object dependencies as well as configurable profile its working fine.

I need to create material variant so i assigned configurable material to material variant in MRP 3 view then selected the characterstics as per requirement. BOM also i assigned the configurable material. But at the time planning its not planning as per requirement also i need to consume the stock as per configuration at the time of sales order delivery.

What are all steps to be followed, where i did mistake pls correct me.

Regards,

S.Suresh.