diff --git a/interface/web/admin/lib/lang/en_groups_list.lng b/interface/web/admin/lib/lang/en_groups_list.lng
index 9944cc1a761a1e6359c86618691723b7ff3e6be5..ba1831836ae442a56bceef72c91cb808814ec842 100644
--- a/interface/web/admin/lib/lang/en_groups_list.lng
+++ b/interface/web/admin/lib/lang/en_groups_list.lng
@@ -3,4 +3,5 @@ $wb["list_head_txt"] = 'Systemuser groups';
 $wb["description_txt"] = 'Description';
 $wb["name_txt"] = 'Group';
 $wb["add_new_record_txt"] = 'Add new Group';
+$wb["warning_txt"] = '<b>WARNING:</b> Do not edit or modify any user settings here. Use the Client- and Reseller settings in the Client module instead. Modifying or changing Users or groups here may cause data loss!';
 ?>
\ No newline at end of file
diff --git a/interface/web/admin/lib/lang/en_users_list.lng b/interface/web/admin/lib/lang/en_users_list.lng
index 258abfe1a945be3ff038a43f5cfbb9a4dd3dbc6b..1042cd35b1dee40e9401292d33513c022594f39f 100644
--- a/interface/web/admin/lib/lang/en_users_list.lng
+++ b/interface/web/admin/lib/lang/en_users_list.lng
@@ -5,4 +5,5 @@ $wb["name_txt"] = 'Name';
 $wb["vorname_txt"] = 'Forename';
 $wb["ort_txt"] = 'city';
 $wb["add_new_record_txt"] = 'Add new user';
+$wb["warning_txt"] = '<b>WARNING:</b> Do not edit or modify any user settings here. Use the Client- and Reseller settings in the Client module instead. Modifying or changing Users or groups here may cause data loss!';
 ?>
\ No newline at end of file
diff --git a/interface/web/admin/templates/groups_list.htm b/interface/web/admin/templates/groups_list.htm
index cc31de564384a9dc376d851847d93e513f462348..301492bf622e03258dfd1f03242cc6fb603c969c 100644
--- a/interface/web/admin/templates/groups_list.htm
+++ b/interface/web/admin/templates/groups_list.htm
@@ -9,6 +9,7 @@
         <button class="iconstxt icoAdd" type="button" onClick="loadContent('admin/groups_edit.php');">
           <span>{tmpl_var name="add_new_record_txt"}</span>
         </button>
+		<p><tmpl_var name="warning_txt"></p>
       </div>
     </fieldset>
   </div>
diff --git a/interface/web/admin/templates/users_list.htm b/interface/web/admin/templates/users_list.htm
index ee1686efd75d1eb33cf41ff57b7f6ff8cfe7fcaa..1ec611e4ff1e35a2da034be49b72b7ae8d975b91 100644
--- a/interface/web/admin/templates/users_list.htm
+++ b/interface/web/admin/templates/users_list.htm
@@ -9,6 +9,7 @@
         <button class="iconstxt icoAdd" type="button" onClick="loadContent('admin/users_edit.php');">
           <span>{tmpl_var name="add_new_record_txt"}</span>
         </button>
+		<p><tmpl_var name="warning_txt"></p>
       </div>
     </fieldset>
   </div>