I am trying to wrap my head around the Firebase User Engagement Calculation. I am doing a lot of debugview testing now, and as the online documentation states (https://suppo
Since I posted this question, I found it would be a lot wiser to look at Session Duration and not Duration between User Engagement Events.
As far as I know, one can not update settings of the user_engagement event, but one can however determine when a session should start (after 0, 5, 10, 15, etc seconds) and b) when a session should end (after 10, 30, 60, etc minutes of inactivity).
To help you get started here is great examples:
Important: a Firebase session starts by default after at least 10s since a user_engagement event was triggered (and a session ends after a period of at least 30 minutes of no triggers of user_engagement). And so, whenever users use your app for a period of less than 10s, you will accrue user engagement without a session. This typically means that you will have higher active user base in your dashboard, than users which started a session under your Firebase Events'-tab.