Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Where can I see when was the last time a given Slack user logged in?
To get the last time a user logged in, take a look at the API method team.accessLogs. It will give you the timestamp of the last login for every user (date_last).
Note that this API method works for paid plans only.
See also my other answer on Stack Overflow.
Required, but never shown