diff --git a/doc/source/system_configuration/kubernetes/gnss-and-synce-support-62004dc97f3e.rst b/doc/source/system_configuration/kubernetes/gnss-and-synce-support-62004dc97f3e.rst
index 2dcbc3c4c..95ffd6a92 100644
--- a/doc/source/system_configuration/kubernetes/gnss-and-synce-support-62004dc97f3e.rst
+++ b/doc/source/system_configuration/kubernetes/gnss-and-synce-support-62004dc97f3e.rst
@@ -20,6 +20,14 @@ additional details if required.
    section is to explain how these parameters can be set, rather than
    describing each possible configuration.
 
+.. note::
+
+    The SyncE configuration using the ``synce4l`` is not supported in |prod-long|.
+
+    The service type of ``synce4l`` in the :command:`ptp-instance-add` command
+    is not supported in |prod-long|.
+
+
 Basic 'clock' instance configuration
 ====================================