Material grp - mandatory field for HERS mateirl type

Hi All,

I am craeting a material master for a HERS material type material.

It has only purchasing and classification view.

There it is asking to maitanin a material which is mandatory. I tried to amke that as optional in OmT3B.( Field to field selection group)

Eventhough i hide it also it is asking to enter the matl grp during matl master craetion.

Is there any other area we are configuring the material grp for HERS material type.

Your valuable answers will be given ful points.

Pl reply

Thanks

A.Gururajan