Environmental awareness

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This means the workings of the data models for UA and GA4 are fundamentally different. Marketers will not be able to simply switch existing event logic from one system to the other; they will have to start fresh with GA4, setting up a new system, to get the most out of it.A session in UA begins when a user lands on your website. It then ends automatically after 30 minutes of inactivity, at the stroke of midnight, or if new campaign parameters are introduced.

By contrast, a session is measured a little differently in GA4. The session_start event australia mobile phone number generates a session ID, which is linked to all other session events. While 30 minutes of inactivity still ends the session automatically, sessions can now continue across the midnight border, and can also process changes in campaign parameters. This means you will likely have fewer sessions as measured in GA4.



GA4 concentrates on a ‘positive’ system measuring engagement rates, rather than focusing on failed interactions. Engagement is given as a percentage of sessions that count as engaged. An engagement session is at least 10 seconds long and includes either at least one conversion event or at least two page views.Bounce rates do still exist in GA4. However, they are calculated differently from the bounce rate in UA. In GA4, the bounce rate is simply the percentage of unengaged sessions – the inverse of the engagement rate.