When first_open event in Firebase is logged?

Question

I am confused with first_open event in Firebase. Here is the document : Document

first_open: the first time a user launches an app after installing or re-installing it.

This event is not triggered when a user downloads the app onto a device, but instead when he or she first uses it. To see raw download numbers, look in Google Play Developer Console or in iTunesConnect.

However some people from Google said that : Refer this link

The last important distinction is that when existing users migrate to the new version of your app which includes Firebase, they will log a first_open event. And so, even though they are not new users, they log a first_open.

As my understanding, If we update app by Google Play then start app again first_open will be logged ? Is that correct ?

Update :
Firebase version
root/

classpath 'com.google.firebase:firebase-plugins:1.1.5'

app/

implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
implementation 'com.google.firebase:firebase-perf:16.2.3'

I think you are looking for : https://stackoverflow.com/questions/38331910/how-event-first-open-in-firebase-analytic-count — Pratik Butani, Feb 14 '19 at 06:17
@FrankvanPuffelen Here is the link from google people : https://stackoverflow.com/a/38332408/951917 — Bulma, Feb 14 '19 at 06:17
@PratikButani : Unbelievable :D Btw, have you know about this ? — Bulma, Feb 14 '19 at 06:20
@FrankvanPuffelen I have just updated link in description . Can you have look at it ? — Bulma, Feb 14 '19 at 07:00
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/188388/discussion-between-miho39-and-pratik-butani). — Bulma, Feb 14 '19 at 07:14

score 2 · Answer 1 · edited Jun 20 '20 at 09:12

2

first_open

the first time a user launches an app after installing or re-installing it.

This event is not triggered when a user downloads the app onto a device, but instead when he or she first uses it. To see raw download numbers, look in Google Play Developer Console or in iTunesConnect.

So I think,

It will not count again if you are updating your app. It will just count when you launch your app first time after installing or re-installing.

edited Jun 20 '20 at 09:12

Community

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answered Feb 14 '19 at 06:27

Pratik Butani

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@Partik : Thanks for reply. Yes, I agree with you because it's a document ! However Steve Ganem is a Product manager from Google and he said that it still counts and they will fix in next version ??? ( is that a bug or something like that ) – Bulma Feb 14 '19 at 06:33
May be that is not bug but they have changed policies. Do not know much more about that. – Pratik Butani Feb 14 '19 at 06:43
Yeah, so we want to know when did they change or in which Firebase version was fixed ( I guess it's still counted ) – Bulma Feb 14 '19 at 06:51

When first_open event in Firebase is logged?

1 Answers1

first_open

Linked