⭐ Why GTM Is NOT Required in SabeeApp for Cross-Domain Tracking (GA4)

Cross-domain tracking in GA4 works automatically as long as TWO conditions are met:

✅ 1. GA4 must load on BOTH domains

• Your website (yourhotel.com)
• SabeeApp IBE (ibe.sabeeapp.com)

And this already happens because:

✔ Your website loads GA4 through GTM

✔ SabeeApp loads GA4 using the Measurement ID you paste in its settings

So GTM does not have to be present on both domains — only GA4 does.

✅ 2. The GA4 linker parameters must be passed between domains

When users click from your website → SabeeApp booking engine, GA4 adds special parameters to the URL:

?_gl=1abcd... (GA4 session linking parameters)

These parameters carry:

• session ID
• client ID
• source/medium
• attribution info

SabeeApp automatically accepts these parameters even without your GTM container.

This is the key point.

🎯 Why this works without GTM in SabeeApp

Because cross-domain tracking is a GA4 feature, not a GTM feature.

GTM only creates the linker parameters.

SabeeApp GA4 tag accepts the linker parameters.

You don’t need GTM on both domains — you only need GA4 on both domains.

🧠 Think of it like this:

• Your website’s GTM “hands over” the session information.
• SabeeApp’s built-in GA4 “catches” it.
• No GTM is needed for catching — only GA4.

⚠️ When WOULD GTM in SabeeApp be required?

Only if you want:

• Facebook Pixel
• TikTok Pixel
• Google Ads remarketing
• custom events
• advanced eCommerce setup
• other marketing scripts

These are not needed for GA4 cross-domain tracking.

🟢 Summary

GTM is not required in SabeeApp for GA4 cross-domain tracking because:

1. SabeeApp already loads your GA4 tag when you paste your Measurement ID.
2. GA4 automatically accepts linker parameters sent from your website’s GTM.
3. Cross-domain tracking happens purely through GA4 → not through GTM.

As long as:

• both domains load GA4
• cross-domain rules are set in GA4
• unwanted referrals are configured

…cross-domain tracking works perfectly without installing GTM in SabeeApp.