Connect server-side Google Tag Manager (sGTM)
Use this integration if you run a server-side GTM container and want Rex to send events to it instead of (or in addition to) GA4 directly.
1
Open the sGTM integration
Navigate to the Integrations page.
Marketplace›Integrations
2
Enter your sGTM endpoint
The settings modal opens. Enter the full HTTPS URL of your sGTM container endpoint (e.g., `https://gtm.yourdomain.com`).
3
Enter your API Secret
Enter the **API Secret** from your sGTM container's Measurement Protocol configuration.
4
Select tracking events
Under **Tracking Events**, check which events to send. Currently supports **Reservation Confirmed**.
5
Save
Click **Save Changes**.
| Field | Description |
|---|---|
| sGTM Endpoint URL | Full URL of your server-side GTM container. Must start with `https://`. |
| API Secret | Measurement Protocol API secret from your sGTM container configuration. |
| Tracking Events | Events to forward to sGTM. |
Updated May 12, 2026
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