Production Reporting jobs have two parameter types, ASK and INPUT. ASK parameters (variables) are used at compile time. INPUT parameters (variables) are used when the job is executed and are displayed as prompts when users run the job. You can add ASK and INPUT parameters to the parameter list. Only Production Reporting jobs have ASK parameters. Production Reporting and generic jobs can have INPUT parameters. Further define a parameter by selecting Modify for the parameter. Also select custom forms for user input of parameters.