diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c71a63..f75138e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [unreleased] - 
+## [unreleased]
 
 ### Fixed
 
 - Fix unauthorized deletion of ticket actors according to plugin configuration
+- Fix unsended notifications while `Delete old groups when adding a new one` is set to `No`
 
 ## [2.9.4] - 2024-04-03
 
diff --git a/inc/ticket.class.php b/inc/ticket.class.php
index 814ff34..3c253d1 100644
--- a/inc/ticket.class.php
+++ b/inc/ticket.class.php
@@ -410,17 +410,15 @@ public static function addHistoryOnAddGroup(CommonDBTM $item)
 
     public static function processAfterAddGroup(CommonDBTM $item)
     {
-        if ($_SESSION['plugins']['escalade']['config']['remove_group'] == false) {
-            return true;
-        }
-
         $tickets_id = $item->fields['tickets_id'];
-        $groups_id  = $item->fields['groups_id'];
+        $groups_id = $item->fields['groups_id'];
 
-       //remove old groups (keep last assigned)
-        self::removeAssignGroups($tickets_id, $groups_id);
+        //remove old groups (keep last assigned)
+        if ($_SESSION['plugins']['escalade']['config']['remove_group'] == true) {
+            self::removeAssignGroups($tickets_id, $groups_id);
+        }
 
-       //notified only the last group assigned
+        //notified only the last group assigned
         $ticket = new Ticket();
         $ticket->getFromDB($tickets_id);