Runtime parameters allow you to enter values and generate a new result set each time you run a report. This is useful for reports that have one or more varying parameters, such as start and stop dates and zip codes.
To define a runtime parameter:
Select a parameter in the Input Parameters dialog box and click Runtime.
In the Runtime Parameter dialog box, select Query the user at runtime for the value of this parameter.
Enter a prompt to appear when a user runs the report.
For example, a runtime parameter for Sales group might say: Enter a sales group.
Click OK to return to the Input Parameters page.
Note:
Runtime parameters have a dot in the cell's lower right corner, and the Values field next to the parameter disables.