Create UoM in SRM

Dear All,

Could you please help me with stepd for creating a new UoM in SRM?

I need to create a UoM of "No Dimensional".

Do I need to create it first in R/3? Through which transaction we can replicate it to SRM?

Is it transportable or do we need to maintain it directly in prodcution system?

Please help me.

Thanks.

SS