diff --git a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.component.html b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.component.html
index bb6e3ba65c..56afc9f879 100644
--- a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.component.html
+++ b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.component.html
@@ -47,13 +47,14 @@
       </mat-radio-group>
       <section formGroupName="usersFilter"
                *ngIf="targetNotificationForm.get('configuration.type').value === notificationTargetType.PLATFORM_USERS">
-        <mat-form-field class="mat-block">
+        <mat-form-field class="mat-block" subscriptSizing="dynamic">
           <mat-label translate>notification.target-type.user-filters</mat-label>
           <mat-select formControlName="type">
             <mat-option *ngFor="let type of notificationTargetConfigTypes" [value]="type">
-              {{ notificationTargetConfigTypeTranslateMap.get(type) | translate }}
+              {{ notificationTargetConfigTypeInfoMap.get(type).name | translate }}
             </mat-option>
           </mat-select>
+          <mat-hint>{{ notificationTargetConfigTypeInfoMap.get(targetNotificationForm.get('configuration.usersFilter.type').value).hint | translate }}</mat-hint>
         </mat-form-field>
         <ng-container [ngSwitch]="targetNotificationForm.get('configuration.usersFilter.type').value">
           <ng-container *ngSwitchCase="notificationTargetConfigType.TENANT_ADMINISTRATORS">
diff --git a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.ts b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.ts
index 84fe44f235..868145a824 100644
--- a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.ts
+++ b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.ts
@@ -17,7 +17,7 @@
 import {
   NotificationTarget,
   NotificationTargetConfigType,
-  NotificationTargetConfigTypeTranslateMap,
+  NotificationTargetConfigTypeInfoMap,
   NotificationTargetType,
   NotificationTargetTypeTranslationMap,
   SlackChanelType,
@@ -62,7 +62,7 @@ export class TargetNotificationDialogComponent extends
   notificationTargetTypeTranslationMap = NotificationTargetTypeTranslationMap;
   notificationTargetConfigType = NotificationTargetConfigType;
   notificationTargetConfigTypes: NotificationTargetConfigType[] = this.allowNotificationTargetConfigTypes();
-  notificationTargetConfigTypeTranslateMap = NotificationTargetConfigTypeTranslateMap;
+  notificationTargetConfigTypeInfoMap = NotificationTargetConfigTypeInfoMap;
   slackChanelTypes = Object.keys(SlackChanelType) as SlackChanelType[];
   slackChanelTypesTranslateMap = SlackChanelTypesTranslateMap;
 
diff --git a/ui-ngx/src/app/shared/models/notification.models.ts b/ui-ngx/src/app/shared/models/notification.models.ts
index 908efd7fe0..f54d1f6793 100644
--- a/ui-ngx/src/app/shared/models/notification.models.ts
+++ b/ui-ngx/src/app/shared/models/notification.models.ts
@@ -354,13 +354,44 @@ export enum NotificationTargetConfigType {
   ACTION_TARGET_USER = 'ACTION_TARGET_USER'
 }
 
-export const NotificationTargetConfigTypeTranslateMap = new Map<NotificationTargetConfigType, string>([
-  [NotificationTargetConfigType.ALL_USERS, 'notification.target-type.all-users'],
-  [NotificationTargetConfigType.TENANT_ADMINISTRATORS, 'notification.target-type.tenant-administrators'],
-  [NotificationTargetConfigType.CUSTOMER_USERS, 'notification.target-type.customer-users'],
-  [NotificationTargetConfigType.USER_LIST, 'notification.target-type.user-list'],
-  [NotificationTargetConfigType.ORIGINATOR_ENTITY_OWNER_USERS, 'notification.target-type.originator-entity-owner-users'],
-  [NotificationTargetConfigType.ACTION_TARGET_USER, 'notification.target-type.action-target-user'],
+interface NotificationTargetConfigTypeInfo {
+  name: string;
+  hint?: string;
+}
+
+export const NotificationTargetConfigTypeInfoMap = new Map<NotificationTargetConfigType, NotificationTargetConfigTypeInfo>([
+  [NotificationTargetConfigType.ALL_USERS,
+    {
+      name: 'notification.target-type.all-users'
+    }
+  ],
+  [NotificationTargetConfigType.TENANT_ADMINISTRATORS,
+    {
+      name: 'notification.target-type.tenant-administrators'
+    }
+  ],
+  [NotificationTargetConfigType.CUSTOMER_USERS,
+    {
+      name: 'notification.target-type.customer-users'
+    }
+  ],
+  [NotificationTargetConfigType.USER_LIST,
+    {
+      name: 'notification.target-type.user-list'
+    }
+  ],
+  [NotificationTargetConfigType.ORIGINATOR_ENTITY_OWNER_USERS,
+    {
+      name: 'notification.target-type.originator-entity-owner-users',
+      hint: 'notification.target-type.originator-entity-owner-users-hint'
+    }
+  ],
+  [NotificationTargetConfigType.ACTION_TARGET_USER,
+    {
+      name: 'notification.target-type.action-target-user',
+      hint: 'notification.target-type.action-target-user-hint'
+    }
+  ]
 ]);
 
 export enum NotificationType {
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index eb3072e1a7..31bc7f4062 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -2873,9 +2873,11 @@
         "target-name-required": "Name is required",
         "target-type": {
             "action-target-user": "Action target user",
+            "action-target-user-hint": "Action target user hint",
             "all-users": "All users",
             "customer-users": "Customer users",
             "originator-entity-owner-users": "Users of originator entity owner",
+            "originator-entity-owner-users-hint": "Users of originator entity owner hint",
             "tenant-administrators": "Tenant administrators",
             "user-filters": "User filter",
             "user-list": "User list"