How do I connect server events to user sessions?

Cherry Seed

Capture the client_id from the _ga cookie on the client side and pass it to your server. Include this client_id in your Measurement Protocol request. GA4 uses this ID to associate the server event with the user's browsing session. Without matching client_id, events appear as separate users.

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Connecting server events to sessions: The client_id: GA4 assigns each browser a unique client_id, stored in the _ga cookie: Capture client-side: Pass to server: Include in checkout form or session: Send with MP request: What happens:

GA4 receives server event
Matches to existing client_id
Event attributed to user's session
Shows in user's journey If no client_id captured: Generate a new one server-side. Event won't connect to browsing session but will still be tracked. Best practice: Always try to capture and pass the real client_id for session...

Cherry Seed

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