diff --git a/content/applications/websites/website/reporting/analytics.rst b/content/applications/websites/website/reporting/analytics.rst
index 984345e9d..10a6abf4e 100644
--- a/content/applications/websites/website/reporting/analytics.rst
+++ b/content/applications/websites/website/reporting/analytics.rst
@@ -137,7 +137,9 @@ measurement codes and related code fragments, collectively known as tags on your
 app, directly through the code injector.
 
 .. warning::
-   Google Tag Manager may not be compliant with local data protection regulations.
+   - Some GTM tags use data layers (e.g., advanced eCommerce tracking data layers) to retrieve
+     variables and send them to Google Analytics. Data layers are currently not managed in Odoo.
+   - Google Tag Manager may not be compliant with local data protection regulations.
 
 To use GTM, proceed as follows: