Firebase Event Glossary

A - N

A C F L M N
app_error
This occurs whenever an expected or recoverable error occurs within the runtime of the app. These are recorded in order for us to better handle some processes while not interrupting the user experience. Events of this type report with some properties to help development better clarify what background alerts occur.

app_exception
This is a default event collected by Firebase. See https://support.google.com/firebase/answer/6317485 for all the default events and what they mean.

app_open
This records when the app is opened on a device. It records at the initial launch of the app, but not when it is running in the background and moved to the front again. This can be used to record how many times your app is opened.

app_remove
This is a default event collected by Firebase. See https://support.google.com/firebase/answer/6317485 for all the default events and what they mean.

app_resume (Sort)
This measures when the app is resumed from the background if the app has not been fully closed. This can be useful to see how often people are jumping back into the app after opening it.

O - V

O P S U V
os_update
This is a default event collected by Firebase. See https://support.google.com/firebase/answer/6317485 for all the default events and what they mean.