Error Notification

[Modtamod]

I have a month and a year prompt on my report. How will I accomplish it in a way that when an invalid date like year is not valild (example year 3000)  it will pop up and event or notify the user that the parameter they enter is invalid. Please advice.

[Suraj]

You can use a conditional block on the prompt page that activates only if the entered value is above current year.
But for best practices, use the following alternative approach:
Just allow the users to select from the value that is available for the data.
That way users cannot select any other values than what is available.