You must provide the intent for the constant, that is, Buy or Sell; a constant name must be unique for a given intent.
Once defined, constants are available across all operating units that use the Contract Terms Library.
Navigate to the Create Constant page.
Navigation: Contract Expert > Constants tab > Create Constant button
Enter a short Name for the constant.
In the Description field describe the purpose of the constant.
Select the Intent for the constant. The intent can be either Buy or Sell.
In the Value field enter a numeric value for the constant.
Click Apply to save the constant.