How to create BOm component without component quantity./ comp quantity = 0.

Hi All,

I am in need to create BOM component but Component quantity should be zero ?

I tried it by CS01 also by changing existing one by CS02, But it is not possible as it is Mandatory filed there.

Is there any way to do this ?

Also if possible can anyone tell me What is Culet material and Batch material....Is this one is part of PM Module ?