Hi Ahmed,
Instead of dependency if we are using the class, ensure that for Super BOM components item category to be selected as 'K'. Create a class of class type 200 and assign it to the materials in material master which will be used as BOM components in the Super BOM.
Example: CAR
CAR has components such as Blue Body, White Body, Red Body etc. Instead of writing selection condition for every material in BOM, we can define 200 class and use as class item in BOM.
Thanks & Regards,
Ramagiri