Refiner automatically keeps track of when a user starts a new session in your application. The start time of the current user session can be used as the reference time for example in the Time Delay and Tracked Event survey trigger.
Until today, a new client session was always automatically detected when a user returns to your application after at least one hour of inactivity. In most cases, this approximation is sufficient.
With our newest release, you can also manually inform Refiner that a new session started with the new startSession method. You can call this method for example right after a user logs in to your application.