You can insert a parameter into a macro as your are creating it. Parameters provide you with flexibility when you are designing macros that users need to insert into rules. You give the parameter a name that instructs users what to substitute for it when the user is adding the macro to a business rule.
To insert a parameter into a macro:
Right-click in the Source tab where you want to insert a parameter.
The Macro Parameters dialog box is displayed. It contains a list of all of the parameters that you can insert into the macro.
In the Macro Parameters dialog box, select the parameter you want to insert into the macro.
Click OK to insert the parameter into the macro.
The parameter is inserted on the Source tab to the right of the cursor.