I'm attempting to create an automation that fills in a "End Date" field that we've been using the date when the associated Issue's status transitions to a complete status. 
In this case, the date would be changed to 5/15/2023. I didn't utilize Resolution via the Workflow until fairly recently, and I'm there's a load of completed requests that don't have an end date that is easily accessible/changed and thats able to be utilized in stuff like eazyBI.
I'm sure there's way easier and obvious ways to go about this, but if anyone knows what I should do, that would be greatly appreciated.