After adding the new report parameter, the CustomerInfo query string must be updated by referencing the new report parameter (in this tutorial, CustNumber). This is performed from the Data tab in the design environment.
To modify the query string:
Open the Generic Query Designer and update the string as appropriate.
Select the Preview tab from the report design environment.
Note that the report now prompts for the customer number and includes the View Report button for executing each new customer number query.
