diff --git a/ui-ngx/src/app/core/http/entity.service.ts b/ui-ngx/src/app/core/http/entity.service.ts
index 16d3d5126b..ec4820bad8 100644
--- a/ui-ngx/src/app/core/http/entity.service.ts
+++ b/ui-ngx/src/app/core/http/entity.service.ts
@@ -89,6 +89,7 @@ import { DeviceProfileService } from '@core/http/device-profile.service';
 import { QueueService } from '@core/http/queue.service';
 import { AssetProfileService } from '@core/http/asset-profile.service';
 import { NotificationService } from '@core/http/notification.service';
+import { TenantProfileService } from '@core/http/tenant-profile.service';
 
 @Injectable({
   providedIn: 'root'
@@ -112,6 +113,7 @@ export class EntityService {
     private otaPackageService: OtaPackageService,
     private widgetService: WidgetService,
     private deviceProfileService: DeviceProfileService,
+    private tenantProfileService: TenantProfileService,
     private assetProfileService: AssetProfileService,
     private utils: UtilsService,
     private queueService: QueueService,
@@ -241,6 +243,11 @@ export class EntityService {
           (id) => this.deviceProfileService.getDeviceProfileInfo(id, config),
           entityIds);
         break;
+      case EntityType.TENANT_PROFILE:
+        observable = this.getEntitiesByIdsObservable(
+          (id) => this.tenantProfileService.getTenantProfileInfo(id, config),
+          entityIds);
+        break;
       case EntityType.ASSET_PROFILE:
         observable = this.getEntitiesByIdsObservable(
           (id) => this.assetProfileService.getAssetProfileInfo(id, config),
@@ -399,6 +406,10 @@ export class EntityService {
         pageLink.sortOrder.property = 'name';
         entitiesObservable = this.deviceProfileService.getDeviceProfileInfos(pageLink, null, config);
         break;
+      case EntityType.TENANT_PROFILE:
+        pageLink.sortOrder.property = 'name';
+        entitiesObservable = this.tenantProfileService.getTenantProfiles(pageLink, config);
+        break;
       case EntityType.ASSET_PROFILE:
         pageLink.sortOrder.property = 'name';
         entitiesObservable = this.assetProfileService.getAssetProfileInfos(pageLink, config);
diff --git a/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.html b/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.html
index 4e72dcbfa4..1a472e7246 100644
--- a/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.html
+++ b/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.html
@@ -159,16 +159,16 @@
             <mat-button-toggle-group class="tb-notification-unread-toggle-group"
                                      style="width: 250px;"
                                      formControlName="filterByDevice">
-              <mat-button-toggle fxFlex [value]=true>{{ 'notification.device' | translate }}</mat-button-toggle>
-              <mat-button-toggle fxFlex [value]=false>{{ 'notification.device-profile' | translate }}</mat-button-toggle>
+              <mat-button-toggle fxFlex [value]=true>{{ 'device.device' | translate }}</mat-button-toggle>
+              <mat-button-toggle fxFlex [value]=false>{{ 'device-profile.device-profile' | translate }}</mat-button-toggle>
             </mat-button-toggle-group>
           </div>
           <ng-container *ngIf="deviceInactivityTemplateForm.get('triggerConfig.filterByDevice').value; else deviceProfile">
             <tb-entity-list
               formControlName="devices"
               subscriptSizing="dynamic"
-              labelText="{{ 'notification.devices' | translate }}"
-              placeholderText="{{ 'notification.devices' | translate }}"
+              labelText="{{ 'device.devices' | translate }}"
+              placeholderText="{{ 'device.devices' | translate }}"
               hint="{{ 'notification.device-list-rule-hint' | translate }}"
               [entityType]="entityType.DEVICE">
             </tb-entity-list>
@@ -177,8 +177,8 @@
             <tb-entity-list
               formControlName="deviceProfiles"
               subscriptSizing="dynamic"
-              labelText="{{ 'notification.device-profiles' | translate }}"
-              placeholderText="{{ 'notification.device-profiles' | translate }}"
+              labelText="{{ 'device-profile.device-profiles' | translate }}"
+              placeholderText="{{ 'device-profile.device-profiles' | translate }}"
               hint="{{ 'notification.device-profiles-list-rule-hint' | translate }}"
               [entityType]="entityType.DEVICE_PROFILE">
             </tb-entity-list>
@@ -258,9 +258,14 @@
               </mat-select>
             </mat-form-field>
           </fieldset>
-          <mat-slide-toggle formControlName="onlyUserComments" style="margin-bottom: 12px;">
-            {{ 'notification.notify-only-user-comments' | translate }}
-          </mat-slide-toggle>
+          <section fxLayout="column">
+            <mat-slide-toggle formControlName="onlyUserComments" style="margin-bottom: 12px;">
+              {{ 'notification.notify-only-user-comments' | translate }}
+            </mat-slide-toggle>
+            <mat-slide-toggle formControlName="notifyOnCommentUpdate" style="margin-bottom: 12px;">
+              {{ 'notification.notify-on-comment-update' | translate }}
+            </mat-slide-toggle>
+          </section>
         </section>
       </form>
       <form [formGroup]="ruleNotificationForm">
@@ -306,9 +311,17 @@
               </mat-select>
             </mat-form-field>
           </fieldset>
-          <mat-slide-toggle formControlName="notifyOnUnassign" style="margin-bottom: 12px;">
-            {{ 'notification.notify-on-unassign' | translate }}
-          </mat-slide-toggle>
+          <mat-form-field fxFlex class="mat-block">
+            <mat-label translate>notification.notify-on</mat-label>
+            <mat-select formControlName="notifyOn" multiple>
+              <mat-option *ngFor="let alarmAssignmentAction of alarmAssignmentActions" [value]="alarmAssignmentAction">
+                {{ alarmAssignmentActionTranslationMap.get(alarmAssignmentAction) | translate }}
+              </mat-option>
+            </mat-select>
+            <mat-error *ngIf="alarmAssignmentTemplateForm.get('triggerConfig.notifyOn').hasError('required')">
+              {{ 'notification.notify-on-required' | translate }}
+            </mat-error>
+          </mat-form-field>
         </section>
       </form>
       <form [formGroup]="ruleNotificationForm">
diff --git a/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.ts b/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.ts
index e4335cc130..4939b0e861 100644
--- a/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.ts
+++ b/ui-ngx/src/app/modules/home/pages/notification-center/rule-table/rule-notification-dialog.component.ts
@@ -17,6 +17,8 @@
 import {
   AlarmAction,
   AlarmActionTranslationMap,
+  AlarmAssignmentAction,
+  AlarmAssignmentActionTranslationMap,
   NotificationRule,
   NotificationTarget,
   TriggerType,
@@ -94,6 +96,9 @@ export class RuleNotificationDialogComponent extends
   alarmActions: AlarmAction[] = Object.values(AlarmAction);
   alarmActionTranslationMap = AlarmActionTranslationMap;
 
+  alarmAssignmentActions: AlarmAssignmentAction[] = Object.values(AlarmAssignmentAction);
+  alarmAssignmentActionTranslationMap = AlarmAssignmentActionTranslationMap;
+
   entityType = EntityType;
   entityTypes: EntityType[] = Object.values(EntityType);
   isAdd = true;
@@ -207,7 +212,8 @@ export class RuleNotificationDialogComponent extends
         alarmTypes: [null],
         alarmSeverities: [[]],
         alarmStatuses: [[]],
-        onlyUserComments: [false]
+        onlyUserComments: [false],
+        notifyOnCommentUpdate: [false]
       })
     });
 
@@ -216,7 +222,7 @@ export class RuleNotificationDialogComponent extends
         alarmTypes: [null],
         alarmSeverities: [[]],
         alarmStatuses: [[]],
-        notifyOnUnassign: [true]
+        notifyOn: [[AlarmAssignmentAction.ASSIGNED], Validators.required]
       })
     });
 
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 4c3583eeaf..bb6e3ba65c 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
@@ -56,6 +56,38 @@
           </mat-select>
         </mat-form-field>
         <ng-container [ngSwitch]="targetNotificationForm.get('configuration.usersFilter.type').value">
+          <ng-container *ngSwitchCase="notificationTargetConfigType.TENANT_ADMINISTRATORS">
+            <section *ngIf="isSysAdmin()">
+              <div fxFlex fxLayoutAlign="center center">
+                <mat-button-toggle-group class="tb-notification-tenant-group"
+                                         style="width: 280px;"
+                                         formControlName="filterByTenants">
+                  <mat-button-toggle fxFlex [value]=true>{{ 'tenant.tenant' | translate }}</mat-button-toggle>
+                  <mat-button-toggle fxFlex [value]=false>{{ 'tenant-profile.tenant-profile' | translate }}</mat-button-toggle>
+                </mat-button-toggle-group>
+              </div>
+              <ng-container *ngIf="targetNotificationForm.get('configuration.usersFilter.filterByTenants').value; else tenantProfiles">
+                <tb-entity-list
+                  formControlName="tenantsIds"
+                  subscriptSizing="dynamic"
+                  labelText="{{ 'tenant.tenants' | translate }}"
+                  placeholderText="{{ 'tenant.tenants' | translate }}"
+                  hint="{{ 'notification.tenants-list-rule-hint' | translate }}"
+                  [entityType]="entityType.TENANT">
+                </tb-entity-list>
+              </ng-container>
+              <ng-template #tenantProfiles>
+                <tb-entity-list
+                  formControlName="tenantProfilesIds"
+                  subscriptSizing="dynamic"
+                  labelText="{{ 'tenant-profile.tenant-profiles' | translate }}"
+                  placeholderText="{{ 'tenant-profile.tenant-profiles' | translate }}"
+                  hint="{{ 'notification.tenant-profiles-list-rule-hint' | translate }}"
+                  [entityType]="entityType.TENANT_PROFILE">
+                </tb-entity-list>
+              </ng-template>
+            </section>
+          </ng-container>
           <ng-container *ngSwitchCase="notificationTargetConfigType.USER_LIST">
             <tb-entity-list
               required
diff --git a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.scss b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.scss
index 4f6d9f0af3..25d51c040b 100644
--- a/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.scss
+++ b/ui-ngx/src/app/modules/home/pages/notification-center/targets-table/target-notification-dialog.componet.scss
@@ -56,4 +56,58 @@
       flex-direction: column;
     }
   }
+
+  .mat-button-toggle-group.tb-notification-tenant-group {
+    &.mat-button-toggle-group-appearance-standard {
+      border: none;
+      border-radius: 18px;
+      margin-bottom: 14px;
+
+      .mat-button-toggle + .mat-button-toggle {
+        border-left: none;
+      }
+    }
+
+    .mat-button-toggle {
+      background: rgba(0, 0, 0, 0.06);
+      height: 36px;
+      align-items: center;
+      display: flex;
+
+      .mat-button-toggle-ripple {
+        top: 2px;
+        left: 2px;
+        right: 2px;
+        bottom: 2px;
+        border-radius: 18px;
+      }
+    }
+
+    .mat-button-toggle-button {
+      color: #959595;
+    }
+
+    .mat-button-toggle-focus-overlay {
+      border-radius: 18px;
+      margin: 2px;
+    }
+
+    .mat-button-toggle-checked .mat-button-toggle-button {
+      background-color: $tb-primary-color;
+      color: #fff;
+      border-radius: 18px;
+      margin-left: 2px;
+      margin-right: 2px;
+    }
+
+    .mat-button-toggle-appearance-standard .mat-button-toggle-label-content {
+      line-height: 34px;
+      font-size: 16px;
+      font-weight: 500;
+    }
+
+    .mat-button-toggle-checked.mat-button-toggle-appearance-standard:not(.mat-button-toggle-disabled):hover .mat-button-toggle-focus-overlay {
+      opacity: .01;
+    }
+  }
 }
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 c54fcfa2a6..84fe44f235 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
@@ -32,7 +32,7 @@ import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 import { NotificationService } from '@core/http/notification.service';
 import { EntityType } from '@shared/models/entity-type.models';
-import { deepTrim, isDefined } from '@core/utils';
+import { deepTrim, isDefinedAndNotNull } from '@core/utils';
 import { Subject } from 'rxjs';
 import { takeUntil } from 'rxjs/operators';
 import { Authority } from '@shared/models/authority.enum';
@@ -61,7 +61,7 @@ export class TargetNotificationDialogComponent extends
   notificationTargetTypes: NotificationTargetType[] = Object.values(NotificationTargetType);
   notificationTargetTypeTranslationMap = NotificationTargetTypeTranslationMap;
   notificationTargetConfigType = NotificationTargetConfigType;
-  notificationTargetConfigTypes: NotificationTargetConfigType[] = Object.values(NotificationTargetConfigType);
+  notificationTargetConfigTypes: NotificationTargetConfigType[] = this.allowNotificationTargetConfigTypes();
   notificationTargetConfigTypeTranslateMap = NotificationTargetConfigTypeTranslateMap;
   slackChanelTypes = Object.keys(SlackChanelType) as SlackChanelType[];
   slackChanelTypesTranslateMap = SlackChanelTypesTranslateMap;
@@ -79,7 +79,7 @@ export class TargetNotificationDialogComponent extends
               private notificationService: NotificationService) {
     super(store, router, dialogRef);
 
-    if (isDefined(data.isAdd)) {
+    if (isDefinedAndNotNull(data.isAdd)) {
       this.isAdd = data.isAdd;
     }
 
@@ -88,9 +88,12 @@ export class TargetNotificationDialogComponent extends
       configuration: this.fb.group({
         type: [NotificationTargetType.PLATFORM_USERS],
         usersFilter: this.fb.group({
-          type: [{value: NotificationTargetConfigType.ALL_USERS, disabled: !this.isTenantAdmin()}],
+          type: [NotificationTargetConfigType.ALL_USERS],
+          filterByTenants: [{value: true, disabled: true}],
+          tenantsIds: [{value: null, disabled: true}],
+          tenantProfilesIds: [{value: null, disabled: true}],
+          customerId: [{value: null, disabled: true}, Validators.required],
           usersIds: [{value: null, disabled: true}, Validators.required],
-          customerId: [{value: null, disabled: true}, Validators.required]
         }),
         conversationType: [{value: SlackChanelType.PUBLIC_CHANNEL, disabled: true}],
         conversation: [{value: '', disabled: true}, Validators.required],
@@ -104,10 +107,8 @@ export class TargetNotificationDialogComponent extends
       this.targetNotificationForm.get('configuration').disable({emitEvent: false});
       switch (type) {
         case NotificationTargetType.PLATFORM_USERS:
-          if (this.isTenantAdmin()) {
-            this.targetNotificationForm.get('configuration.usersFilter').enable({emitEvent: false});
-            this.targetNotificationForm.get('configuration.usersFilter.type').updateValueAndValidity({onlySelf: true});
-          }
+          this.targetNotificationForm.get('configuration.usersFilter').enable({emitEvent: false});
+          this.targetNotificationForm.get('configuration.usersFilter.type').updateValueAndValidity({onlySelf: true});
           break;
         case NotificationTargetType.SLACK:
           this.targetNotificationForm.get('configuration.conversationType').enable({emitEvent: false});
@@ -123,6 +124,11 @@ export class TargetNotificationDialogComponent extends
     ).subscribe((type: NotificationTargetConfigType) => {
       this.targetNotificationForm.get('configuration.usersFilter').disable({emitEvent: false});
       switch (type) {
+        case NotificationTargetConfigType.TENANT_ADMINISTRATORS:
+          if (this.isSysAdmin()) {
+            this.targetNotificationForm.get('configuration.usersFilter.filterByTenants').enable({onlySelf: true});
+          }
+          break;
         case NotificationTargetConfigType.USER_LIST:
           this.targetNotificationForm.get('configuration.usersFilter.usersIds').enable({emitEvent: false});
           break;
@@ -133,9 +139,25 @@ export class TargetNotificationDialogComponent extends
       this.targetNotificationForm.get('configuration.usersFilter.type').enable({emitEvent: false});
     });
 
-    if (isDefined(data.target)) {
+    this.targetNotificationForm.get('configuration.usersFilter.filterByTenants').valueChanges.pipe(
+      takeUntil(this.destroy$)
+    ).subscribe((value: boolean) => {
+      if (value) {
+        this.targetNotificationForm.get('configuration.usersFilter.tenantsIds').enable({emitEvent: false});
+        this.targetNotificationForm.get('configuration.usersFilter.tenantProfilesIds').disable({emitEvent: false});
+      } else {
+        this.targetNotificationForm.get('configuration.usersFilter.tenantsIds').disable({emitEvent: false});
+        this.targetNotificationForm.get('configuration.usersFilter.tenantProfilesIds').enable({emitEvent: false});
+      }
+    });
+
+    if (isDefinedAndNotNull(data.target)) {
       this.targetNotificationForm.patchValue(data.target, {emitEvent: false});
       this.targetNotificationForm.get('configuration.type').updateValueAndValidity({onlySelf: true});
+      if (this.isSysAdmin() && data.target.configuration.usersFilter.type === NotificationTargetConfigType.TENANT_ADMINISTRATORS) {
+        this.targetNotificationForm.get('configuration.usersFilter.filterByTenants')
+          .patchValue(!Array.isArray(this.data.target.configuration.usersFilter.tenantProfilesIds), {onlySelf: true});
+      }
     }
   }
 
@@ -150,21 +172,27 @@ export class TargetNotificationDialogComponent extends
   }
 
   save() {
-    let formValue: NotificationTarget = deepTrim(this.targetNotificationForm.value);
-    if (isDefined(this.data.target)) {
+    let formValue = deepTrim(this.targetNotificationForm.value);
+    if (isDefinedAndNotNull(this.data.target)) {
       formValue = Object.assign({}, this.data.target, formValue);
     }
-    if (formValue.configuration.type === NotificationTargetType.PLATFORM_USERS && !formValue.configuration.usersFilter) {
-      formValue.configuration.usersFilter = {
-        type: NotificationTargetConfigType.ALL_USERS
-      }
+    if (this.isSysAdmin() && formValue.configuration.type === NotificationTargetType.PLATFORM_USERS &&
+      formValue.configuration.usersFilter.type === NotificationTargetConfigType.TENANT_ADMINISTRATORS) {
+      delete formValue.configuration.usersFilter.filterByTenants;
     }
     this.notificationService.saveNotificationTarget(formValue).subscribe(
       (target) => this.dialogRef.close(target)
     );
   }
 
-  public isTenantAdmin(): boolean {
-    return this.authUser.authority === Authority.TENANT_ADMIN;
+  isSysAdmin(): boolean {
+    return this.authUser.authority === Authority.SYS_ADMIN;
+  }
+
+  private allowNotificationTargetConfigTypes(): NotificationTargetConfigType[] {
+    if (this.isSysAdmin()) {
+      return [NotificationTargetConfigType.ALL_USERS, NotificationTargetConfigType.TENANT_ADMINISTRATORS];
+    }
+    return Object.values(NotificationTargetConfigType);
   }
 }
diff --git a/ui-ngx/src/app/shared/models/notification.models.ts b/ui-ngx/src/app/shared/models/notification.models.ts
index a728496e82..bdff88c9fd 100644
--- a/ui-ngx/src/app/shared/models/notification.models.ts
+++ b/ui-ngx/src/app/shared/models/notification.models.ts
@@ -138,15 +138,15 @@ export interface AlarmCommentNotificationRuleTriggerConfig {
   alarmTypes?: Array<string>;
   alarmSeverities?: Array<AlarmSeverity>;
   alarmStatuses?: Array<AlarmSearchStatus>;
-  notifyOnUnassign?: boolean;
   onlyUserComments?: boolean;
+  notifyOnCommentUpdate?: boolean;
 }
 
 export interface AlarmAssignmentNotificationRuleTriggerConfig {
   alarmTypes?: Array<string>;
   alarmSeverities?: Array<AlarmSeverity>;
   alarmStatuses?: Array<AlarmSearchStatus>;
-  notifyOnUnassign?: boolean;
+  notifyOn: Array<AlarmAssignmentAction>;
 }
 
 export enum AlarmAction {
@@ -163,6 +163,16 @@ export const AlarmActionTranslationMap = new Map<AlarmAction, string>([
   [AlarmAction.CLEARED, 'notification.notify-alarm-action.cleared']
 ])
 
+export enum AlarmAssignmentAction {
+  ASSIGNED = 'ASSIGNED',
+  UNASSIGNED = 'UNASSIGNED'
+}
+
+export const AlarmAssignmentActionTranslationMap = new Map<AlarmAssignmentAction, string>([
+  [AlarmAssignmentAction.ASSIGNED, 'notification.notify-alarm-action.assigned'],
+  [AlarmAssignmentAction.UNASSIGNED, 'notification.notify-alarm-action.unassigned']
+])
+
 export interface NotificationRuleRecipientConfig {
   targets?: Array<string>;
   escalationTable?: {[key: number]: Array<string>};
@@ -187,18 +197,23 @@ export interface PlatformUsersNotificationTargetConfig {
 }
 
 export interface UsersFilter extends
-  Partial<UserListNotificationTargetConfig & CustomerUsersNotificationTargetConfig>{
+  Partial<UserListFilter & CustomerUsersFilter & TenantAdministratorsFilter>{
   type: NotificationTargetConfigType;
 }
 
-interface UserListNotificationTargetConfig {
+interface UserListFilter {
   usersIds: Array<string>;
 }
 
-interface CustomerUsersNotificationTargetConfig {
+interface CustomerUsersFilter {
   customerId: string;
 }
 
+interface TenantAdministratorsFilter {
+  tenantsIds?: Array<string>;
+  tenantProfilesIds?: Array<string>;
+}
+
 export interface SlackNotificationTargetConfig {
   conversationType: SlackChanelType;
   conversation: SlackConversation;
@@ -310,16 +325,20 @@ export const SlackChanelTypesTranslateMap = new Map<SlackChanelType, string>([
 
 export enum NotificationTargetConfigType {
   ALL_USERS = 'ALL_USERS',
-  USER_LIST = 'USER_LIST',
+  TENANT_ADMINISTRATORS = 'TENANT_ADMINISTRATORS',
   CUSTOMER_USERS = 'CUSTOMER_USERS',
-  ORIGINATOR_ENTITY_OWNER_USERS = 'ORIGINATOR_ENTITY_OWNER_USERS'
+  USER_LIST = 'USER_LIST',
+  ORIGINATOR_ENTITY_OWNER_USERS = 'ORIGINATOR_ENTITY_OWNER_USERS',
+  ACTION_TARGET_USER = 'ACTION_TARGET_USER'
 }
 
 export const NotificationTargetConfigTypeTranslateMap = new Map<NotificationTargetConfigType, string>([
   [NotificationTargetConfigType.ALL_USERS, 'notification.target-type.all-users'],
-  [NotificationTargetConfigType.USER_LIST, 'notification.target-type.user-list'],
+  [NotificationTargetConfigType.TENANT_ADMINISTRATORS, 'notification.target-type.tenant-administrators'],
   [NotificationTargetConfigType.CUSTOMER_USERS, 'notification.target-type.customer-users'],
-  [NotificationTargetConfigType.ORIGINATOR_ENTITY_OWNER_USERS, 'notification.target-type.originator-entity-owner-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'],
 ]);
 
 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 9b378be529..74b7e31fb5 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -2768,13 +2768,9 @@
         },
         "delivery-methods": "Delivery methods",
         "description": "Description",
-        "device": "Device",
         "device-inactivity-trigger-settings": "Device inactive trigger settings",
         "device-list-rule-hint": "If the field is empty, the trigger will be applied to all devices",
-        "device-profile": "Device profile",
-        "device-profiles": "Device profiles",
         "device-profiles-list-rule-hint": "If the field is empty, the trigger will be applied to all device profiles",
-        "devices": "Devices",
         "edit-notification-target": "Edit notification recipient",
         "edit-notification-template": "Edit notification template",
         "edit-rule": "Edit rule",
@@ -2816,13 +2812,16 @@
         "notification-target": "Notification recipient",
         "notify": "notify",
         "notify-alarm-action": {
-           "created": "Alarm created",
-           "severity-changed": "Alarm severity changed",
-           "acknowledged": "Alarm acknowledged",
-           "cleared": "Alarm cleared"
+            "assigned": "Alarm assigned",
+            "created": "Alarm created",
+            "severity-changed": "Alarm severity changed",
+            "acknowledged": "Alarm acknowledged",
+            "cleared": "Alarm cleared",
+            "unassigned": "Alarm unassigned"
         },
         "notify-again": "Notify again",
         "notify-on": "Notify on",
+        "notify-on-comment-update": "Notify on comment update",
         "notify-on-required": "Notify on is required",
         "notify-only-user-comments": "Notify only user comments",
         "notify-on-unassign": "Notify on unassign",
@@ -2866,9 +2865,11 @@
         "target-name": "Name",
         "target-name-required": "Name is required",
         "target-type": {
+            "action-target-user": "Action target user",
             "all-users": "All users",
             "customer-users": "Customer users",
             "originator-entity-owner-users": "Users of originator entity owner",
+            "tenant-administrators": "Tenant administrators",
             "user-filters": "User filter",
             "user-list": "User list"
         },
@@ -2894,6 +2895,8 @@
             "general": "General"
         },
         "templates": "Templates",
+        "tenants-list-rule-hint": "If the field is empty, the trigger will be applied to all tenants",
+        "tenant-profiles-list-rule-hint": "If the field is empty, the trigger will be applied to all tenant profiles",
         "time": "Time",
         "trigger": {
             "alarm": "Alarm",