Alternative unit of measure

Hi mate,

Iam creating Alternative unit of measure with help of document.In the documets its saying create variable for the 0unit with help T code. RSZV. I hope that is old version.But we not using 0unit characterstic any where.If i see my query i can see the 0sale_unit,0volumeunit, 0unit-of_wt under the unit dimension.

so how to create varible for the 0unit?

thanks.

hari