diff --git a/source/_integrations/group.markdown b/source/_integrations/group.markdown
index 798bbc6ea48..68f78529aba 100644
--- a/source/_integrations/group.markdown
+++ b/source/_integrations/group.markdown
@@ -45,6 +45,11 @@ Home Assistant can group multiple binary sensors, covers, events, fans, lights,
 
 {% include integrations/config_flow.md %}
 
+{% note %}
+Notification entities can only be grouped via the UI.
+The older notification services can only be grouped via YAML configuration.
+{% endnote %}
+
 ## Group behavior
 
 ### Binary sensor, light, and switch groups
@@ -104,6 +109,11 @@ In short, when any group member entity is `unlocked`, the group will also be `un
 - Otherwise, the group state is `unlocked` if at least one group member is `unlocked`.
 - Otherwise, the group state is `locked`.
 
+### Notify entity groups
+
+- The group state is `unavailable` if all group members are `unavailable`.
+- Otherwise, the group state is the last notification sent to the group.
+
 ### Media player groups
 
 - The group state is `unavailable` if all group members are `unavailable`.