About Units in Parameters
You can assign units to new user-defined parameters of the type Real Number. Existing parameters are considered unitless.
You cannot change a unitless parameter into a parameter with units.
You can show units in the BOM by adding units to the report table. Parameter units for each designated parameter are available to the PDM system such as Pro/INTRALINK, Windchill, or PDMLink.
Consider the following information on the use of units:
Units are not supported for layout and drawing parameters.
The system parameters as well as alternate and reported parameters are derived from the current model units.