DAX Measure - Unique Count of Users with 1 or less login

[Lisa-Eagle]

Hi there,

I am looking for a DAX measure that can help me calculate the total number of users that have only logged in once to our platform.

I have a data field called Login and then an email column.

I've started with this measure which gives me the data I am looking to isolate.

I can then filter to login count is less than 1 but I would like to place a summary metric on a card and not show any of the user details.

Any suggestions please?

[Lisa-Eagle]

Thanks @johnt75 that worked a treat! Appreciate the help!

[johnt75 · Accepted solution]

Try

Users logged in once =
VAR SummaryTable =
    ADDCOLUMNS (
        DISTINCT ( 'Table'[Email] ),
        "@num logins", CALCULATE ( COUNTROWS ( 'Table' ) )
    )
VAR NumLoggedInOnce =
    COUNTROWS ( FILTER ( SummaryTable, [@num logins] <= 1 ) )
RETURN
    NumLoggedInOnce