Hi All,
I have a set of data that is grouped by ticket numbers and each ticket contains various steps (some have more). I want to flag the rows that come before a specific milestone.
The defining value is Hard Schedule Date, however, within each ticket number, there isn't always a set number of steps before it. So, I want to flag all rows before hard schedule date
I've attached sample data.

Any help would be greatly appreciated!
Thanks,
Heather