Sure, let’s take a look at these fields together. As stated in the Google Analytics Documentation:

For the user fields, these provide unique information about the user who is associated with the event. For example, we have ‘user_id’ which is the user ID set via the setUserId API and ‘user_pseudo_id’, which is the pseudonymous ID (like a specific app instance ID) referencing the user. Another interesting one is the ‘user_first_touch_timestamp’, which tells you the exact time (down to microseconds) when the user first opened the app or visited the site.

Now, let’s dive right into those event fields. These provide unique information for each specific event. ‘event_date’ marks the exact date (in YYYYMMDD format) when the event was logged in the registered timezone of your app, while ‘event_timestamp’ indicates the precise time (in microseconds, UTC) when the event was logged on the client. The ‘event_name’ – as you probably guessed – just indicates the name of the event.

A noteworthy field is ‘event_value_in_usd’ where you can find out the event’s “value” parameter, converted into USD. And then, there’s ‘event_bundle_sequence_id’ – this is the sequential ID of the bundle these events were part of when they were uploaded. Finally, ‘event_server_timestamp_offset’ marks the timestamp offset between the actual collection time and the upload time in microseconds.

I hope this clarifies a lot about the different fields!