Specialized Administration > Tailoring Business Objects > Type and Attribute Management > Working with the Type and Attribute Management Utility > About Windchill Units > Adding or Modifying Units Symbols and Conversion Factors
  
Adding or Modifying Units Symbols and Conversion Factors
If the units symbols and conversion factors provided with your Windchill solution (see Windchill Pure Units for a complete list) do not meet your business needs, you can add an entry or modify the existing entries. This is achieved by using the xconfmanager tool to update the site.xconf file, which ensures that your additions or modifications are preserved when you update or upgrade your Windchill solution.
From a Windchill shell, enter the following command:
xconfmanager -s "<symbol>=<conversion factor> <units>" -t codebase/wt/units/pureSymbol.properties -p
where:
<symbol> is the new unit symbol to be added, or the existing unit symbol to be modified
<conversion factor> is expressed with a period symbol (.) as the decimal separator with the number of digits places specified, up to fourteen, indicating how precise the conversion factor is. Out-of-the-box conversion factors are displayed in the Value column of the Pure Units table.
<units> can be any existing supported unit string.
For example, to add a new symbol shakeOfaLambsTail which is equal to 45 seconds with a precision of three decimal places, you would enter the following command:
xconfmanager -s "shakeOfaLambsTail=45.000 s" -t codebase/wt/units/pureSymbol.properties -p
For more information, see About the xconfmanager Utility.