Hello Looker Team,
It sounds like you’d like to implement a warning message in your Looker dashboard filter. This message should appear when a user selects a date or time range that includes data before April 2nd. You’ve even included a screenshot of your time range filter – that’s helpful!
So, to clarify, you want a warning to say something like: “Please select a date range starting after April 2nd.” whenever someone picks a date or time period that goes back before that date.
