Filter on start and end dates

Hi _bs_ 

 You need to duplicate your current date table and keep it disconnected (no relationships).

Add the date from this disconnected table to a slicer

Create another table as follows

DateTypeSelector = DATATABLE("DateType", STRING, {{"CreatedDate"}, {"EndDate"}})

Add this to a slicer

Now create a measure that respects the selected date type, edit to fit your tables

SelectedDateType = SELECTEDVALUE(DateTypeSelector[DateType])

TicketsOpened =
CALCULATE(
    COUNTROWS(FactTickets),
    FILTER(
        FactTickets,
        IF(
            SelectedDateType = "CreatedDate",
            FactTickets[CreatedDate] IN VALUES(DisconnectedDate[Date]),
            FactTickets[EndDate] IN VALUES(DisconnectedDate[Date])
        )
    )
)

 You can use this for ticketsclosed as well.

This will work independantly of other relationships.

I hope this helps, please give a thumbs up and mark as solved if it does, thanks!