---
title: PMS checkout domain appearing in GA4
description: When your PMS hosts checkout on its own domain, GA4 can start a new session when guests return from it, with the checkout domain credited as the traffic…
url: "https://homerunner.io/docs/how-do-you-configure-ga4-to-prevent-a-pms-hosted-checkout-domain-from-appearing/"
updated: "2026-10-26"
category: Booking engine and checkout
---

# PMS checkout domain appearing in GA4

When your PMS hosts checkout on its own domain, GA4 can start a new session when guests return from it, with the checkout domain credited as the traffic source.

To prevent this, in **GA4 Admin**, open the data stream for your property and add the PMS checkout domain to both the **cross-domain settings** and the **unwanted-referrals list**. GA4 then treats the outbound trip to the checkout domain and the return as part of the same session.

Still stuck? [Contact the HomeRunner team](https://homerunner.io/contact/) with your site address and what you tried, and we take it from there.