To set up server-side tracking for GA4:
- Create a Server Container in Google Tag Manager (GTM).
- Deploy on Google Cloud Platform (GCP) using App Engine.
- Configure DNS with a custom domain (optional).
- Update Client-Side GTM to send data to the server container.
- Set Up GA4 Tags in the server container.
- Test using GTM’s Preview Mode.
- Publish and Monitor for accuracy and performance.
This enhances data accuracy, bypasses ad blockers, and ensures compliance.