Parameters are Static by Nature at This moment, What You Can Do is You Can Set Up the Relative Date Filter and Select Year To Date or Last One Year Or whatever, That way your data will always remain current in view. If You have some other purpose of using Parameter, then pl paste some workbook to see how u can be helped.
1 of 1 people found this helpful
With the Extensions API, released with version 2018.2 last Monday, you can now use: https://extensiongallery.tableau.com/products/26. That extension allows you to configure a parameter to today, but is also flexible for yesterday, n days/months/years before, etc.
2018.2 version is brand new, so I understand it may take some time to upgrade. Once you can do though, no need to worry about static parameters anymore!
Hope this helps!