diff --git a/ui-ngx/src/app/core/http/user.service.ts b/ui-ngx/src/app/core/http/user.service.ts
index 0a7d2054e4..9a6b70ce29 100644
--- a/ui-ngx/src/app/core/http/user.service.ts
+++ b/ui-ngx/src/app/core/http/user.service.ts
@@ -16,7 +16,7 @@
 
 import { Injectable } from '@angular/core';
 import { defaultHttpOptionsFromConfig, RequestConfig } from './http-utils';
-import { User } from '@shared/models/user.model';
+import { User, UserEmailInfo } from '@shared/models/user.model';
 import { Observable } from 'rxjs';
 import { HttpClient, HttpParams } from '@angular/common/http';
 import { PageLink } from '@shared/models/page/page-link';
@@ -84,4 +84,8 @@ export class UserService {
     return this.http.post<User>(url, null, defaultHttpOptionsFromConfig(config));
   }
 
+  public findUsersByQuery(pageLink: PageLink, config?: RequestConfig) : Observable<PageData<UserEmailInfo>> {
+    return this.http.get<PageData<UserEmailInfo>>(`/api/users/info${pageLink.toQuery()}`, defaultHttpOptionsFromConfig(config));
+  }
+
 }
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
index 262a45e435..2213be1835 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
@@ -36,9 +36,10 @@
       <span class="user-avatar" [innerHTML]="getUserInitials(user)"
             [style.background-color]="getAvatarBgColor(user)">
       </span>
-      <div fxLayout="column" fxLayoutGap="2px">
-        <span class="user-email" [innerHTML]="user.email | highlight:searchText"></span>
-        <span class="user-name" *ngIf="user.firstName || user.lastName" [innerHTML]="getFullName(user)"></span>
+      <div class="user-display-name" fxLayout="column" fxLayoutGap="2px">
+        <span *ngIf="user.firstName || user.lastName"
+              [innerHTML]="getFullName(user) | highlight:searchText"></span>
+        <span [innerHTML]="user.email | highlight:searchText"></span>
       </div>
     </mat-option>
     <mat-option *ngIf="!(filteredUsers | async)?.length" [value]="null">
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.scss b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.scss
index 462df2e0d2..c76aedbb18 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.scss
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.scss
@@ -76,19 +76,22 @@
         background-color: #5cb445;
         width: 28px;
         height: 28px;
+        min-width: 28px;
+        min-height: 28px;
         color: white;
         font-size: 13px;
         font-weight: 700
       }
-      .user-email {
-        color: rgba(0, 0, 0, 0.76);
-        overflow: hidden;
-        text-overflow: ellipsis;
-        max-width: 185px
-      }
-      .user-name {
-        color: rgba(0, 0, 0, 0.38);
-        font-size: 13px;
+      .user-display-name {
+        max-width: 180px;
+        span {
+          white-space: nowrap;
+          overflow: hidden;
+          text-overflow: ellipsis;
+        }
+        span + span {
+          color: rgba(0, 0, 0, 0.38);
+        }
       }
       .mat-option-text {
         display: flex;
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.ts b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.ts
index 910a6f57c0..32d6c2a1da 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.ts
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.ts
@@ -34,7 +34,7 @@ import {
   switchMap,
   takeUntil,
 } from 'rxjs/operators';
-import { User } from '@shared/models/user.model';
+import { User, UserEmailInfo } from '@shared/models/user.model';
 import { TranslateService } from '@ngx-translate/core';
 import { UserService } from '@core/http/user.service';
 import { PageLink } from '@shared/models/page/page-link';
@@ -69,7 +69,7 @@ export class AlarmAssigneePanelComponent implements  OnInit, AfterViewInit, OnDe
 
   @ViewChild('userInput', {static: true}) userInput: ElementRef;
 
-  filteredUsers: Observable<Array<User>>;
+  filteredUsers: Observable<Array<UserEmailInfo>>;
 
   searchText = '';
 
@@ -138,15 +138,15 @@ export class AlarmAssigneePanelComponent implements  OnInit, AfterViewInit, OnDe
       () => this.overlayRef.dispose());
   }
 
-  fetchUsers(searchText?: string): Observable<Array<User>> {
+  fetchUsers(searchText?: string): Observable<Array<UserEmailInfo>> {
     this.searchText = searchText;
     const pageLink = new PageLink(50, 0, searchText, {
       property: 'email',
       direction: Direction.ASC
     });
-    return this.userService.getUsers(pageLink, {ignoreLoading: true})
+    return this.userService.findUsersByQuery(pageLink, {ignoreLoading: true})
       .pipe(
-      catchError(() => of(emptyPageData<User>())),
+      catchError(() => of(emptyPageData<UserEmailInfo>())),
       map(pageData => {
         return pageData.data;
       })
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-details-dialog.component.ts b/ui-ngx/src/app/modules/home/components/alarm/alarm-details-dialog.component.ts
index 2e97ce7405..d609bef616 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-details-dialog.component.ts
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-details-dialog.component.ts
@@ -88,9 +88,6 @@ export class AlarmDetailsDialogComponent extends DialogComponent<AlarmDetailsDia
       {
         createdTime: [''],
         originatorName: [''],
-        assigneeFirstName: [''],
-        assigneeLastName: [''],
-        assigneeEmail: [''],
         assigneeId: [''],
         startTime: [''],
         endTime: [''],
@@ -125,18 +122,6 @@ export class AlarmDetailsDialogComponent extends DialogComponent<AlarmDetailsDia
       .patchValue(this.datePipe.transform(alarm.createdTime, 'yyyy-MM-dd HH:mm:ss'));
     this.alarmFormGroup.get('originatorName')
       .patchValue(alarm.originatorName);
-    if(alarm.assigneeFirstName) {
-      this.alarmFormGroup.get('assigneeFirstName')
-        .patchValue(alarm.assigneeFirstName);
-    }
-    if(alarm.assigneeLastName) {
-      this.alarmFormGroup.get('assigneeLastName')
-        .patchValue(alarm.assigneeLastName);
-    }
-    if(alarm.assigneeEmail) {
-      this.alarmFormGroup.get('assigneeEmail')
-        .patchValue(alarm.assigneeEmail);
-    }
     if(alarm.assigneeId) {
       this.alarmFormGroup.get('assigneeId')
         .patchValue(alarm.assigneeId.id);
@@ -209,35 +194,35 @@ export class AlarmDetailsDialogComponent extends DialogComponent<AlarmDetailsDia
 
   getUserDisplayName(entity: AlarmInfo) {
     let displayName = '';
-    if ((entity.assigneeFirstName && entity.assigneeFirstName.length > 0) ||
-      (entity.assigneeLastName && entity.assigneeLastName.length > 0)) {
-      if (entity.assigneeFirstName) {
-        displayName += entity.assigneeFirstName;
+    if ((entity.assignee.firstName && entity.assignee.firstName.length > 0) ||
+      (entity.assignee.lastName && entity.assignee.lastName.length > 0)) {
+      if (entity.assignee.firstName) {
+        displayName += entity.assignee.firstName;
       }
-      if (entity.assigneeLastName) {
+      if (entity.assignee.lastName) {
         if (displayName.length > 0) {
           displayName += ' ';
         }
-        displayName += entity.assigneeLastName;
+        displayName += entity.assignee.lastName;
       }
     } else {
-      displayName = entity.assigneeEmail;
+      displayName = entity.assignee.email;
     }
     return displayName;
   }
 
   getUserInitials(entity: AlarmInfo): string {
     let initials = '';
-    if (entity.assigneeFirstName && entity.assigneeFirstName.length ||
-      entity.assigneeLastName && entity.assigneeLastName.length) {
-      if (entity.assigneeFirstName) {
-        initials += entity.assigneeFirstName.charAt(0);
+    if (entity.assignee.firstName && entity.assignee.firstName.length ||
+      entity.assignee.lastName && entity.assignee.lastName.length) {
+      if (entity.assignee.firstName) {
+        initials += entity.assignee.firstName.charAt(0);
       }
-      if (entity.assigneeLastName) {
-        initials += entity.assigneeLastName.charAt(0);
+      if (entity.assignee.lastName) {
+        initials += entity.assignee.lastName.charAt(0);
       }
     } else {
-      initials += entity.assigneeEmail.charAt(0);
+      initials += entity.assignee.email.charAt(0);
     }
     return initials.toUpperCase();
   }
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-table-config.ts b/ui-ngx/src/app/modules/home/components/alarm/alarm-table-config.ts
index f29dae1926..645841f188 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-table-config.ts
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-table-config.ts
@@ -116,7 +116,7 @@ export class AlarmTableConfig extends EntityTableConfig<AlarmInfo, TimePageLink>
           color: alarmSeverityColors.get(entity.severity)
         })));
     this.columns.push(
-      new EntityTableColumn<AlarmInfo>('assigneeEmail', 'alarm.assignee', '200px',
+      new EntityTableColumn<AlarmInfo>('assignee', 'alarm.assignee', '200px',
         (entity) => {
           return this.getAssigneeTemplate(entity)
         },
@@ -190,7 +190,7 @@ export class AlarmTableConfig extends EntityTableConfig<AlarmInfo, TimePageLink>
           <span class="user-avatar" style="background-color: ${this.getAvatarBgColor(entity)}">
             ${this.getUserInitials(entity)}
           </span>
-          <span>${this.getUserDisplayName(entity)}</span>
+          <span class="user-display-name">${this.getUserDisplayName(entity)}</span>
         </span>`
         :
         `<mat-icon class="material-icons unassigned-icon">account_circle</mat-icon>
@@ -201,35 +201,35 @@ export class AlarmTableConfig extends EntityTableConfig<AlarmInfo, TimePageLink>
 
   getUserDisplayName(entity: AlarmInfo) {
     let displayName = '';
-    if ((entity.assigneeFirstName && entity.assigneeFirstName.length > 0) ||
-      (entity.assigneeLastName && entity.assigneeLastName.length > 0)) {
-      if (entity.assigneeFirstName) {
-        displayName += entity.assigneeFirstName;
+    if ((entity.assignee.firstName && entity.assignee.firstName.length > 0) ||
+      (entity.assignee.lastName && entity.assignee.lastName.length > 0)) {
+      if (entity.assignee.firstName) {
+        displayName += entity.assignee.firstName;
       }
-      if (entity.assigneeLastName) {
+      if (entity.assignee.lastName) {
         if (displayName.length > 0) {
           displayName += ' ';
         }
-        displayName += entity.assigneeLastName;
+        displayName += entity.assignee.lastName;
       }
     } else {
-      displayName = entity.assigneeEmail;
+      displayName = entity.assignee.email;
     }
     return displayName;
   }
 
   getUserInitials(entity: AlarmInfo): string {
     let initials = '';
-    if (entity.assigneeFirstName && entity.assigneeFirstName.length ||
-      entity.assigneeLastName && entity.assigneeLastName.length) {
-      if (entity.assigneeFirstName) {
-        initials += entity.assigneeFirstName.charAt(0);
+    if (entity.assignee.firstName && entity.assignee.firstName.length ||
+      entity.assignee.lastName && entity.assignee.lastName.length) {
+      if (entity.assignee.firstName) {
+        initials += entity.assignee.firstName.charAt(0);
       }
-      if (entity.assigneeLastName) {
-        initials += entity.assigneeLastName.charAt(0);
+      if (entity.assignee.lastName) {
+        initials += entity.assignee.lastName.charAt(0);
       }
     } else {
-      initials += entity.assigneeEmail.charAt(0);
+      initials += entity.assignee.email.charAt(0);
     }
     return initials.toUpperCase();
   }
diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-table.component.scss b/ui-ngx/src/app/modules/home/components/alarm/alarm-table.component.scss
index b6dcfdecea..a7a408b419 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-table.component.scss
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-table.component.scss
@@ -22,6 +22,10 @@
         justify-content: flex-start;
         align-items: center;
         .assigned-container {
+          max-width: 180px;
+          overflow: hidden;
+          white-space: nowrap;
+          text-overflow: ellipsis;
           .user-avatar {
             display: inline-flex;
             justify-content: center;
@@ -30,6 +34,8 @@
             border-radius: 50%;
             width: 28px;
             height: 28px;
+            min-width: 28px;
+            min-height: 28px;
             color: white;
             font-size: 13px;
             font-weight: 700;
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.html b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.html
index def95c93f9..694a96047e 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.html
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.html
@@ -84,20 +84,23 @@
           <mat-cell *matCellDef="let alarm; let row = index"
                     [ngStyle]="cellStyle(alarm, column, row)">
             <span [innerHTML]="cellContent(alarm, column, row)"></span>
-            <ng-container *ngIf="column.entityKey.key === 'assigneeEmail'">
+            <ng-container *ngIf="column.entityKey.key === 'assignee'">
               <span class="assignee-cell" fxLayout="row" fxLayoutAlign="start center">
                 <span *ngIf="alarm.assigneeId" class="assigned-container">
                   <span class="user-avatar" [style.backgroundColor]="getAvatarBgColor(alarm)">
                     {{ getUserInitials(alarm) }}
                   </span>
-                  <span style="text-overflow: ellipsis">{{ getUserDisplayName(alarm) }}</span>
+                  <span [matTooltip]="getUserDisplayName(alarm)"
+                        matTooltipPosition="above"
+                        style="text-overflow: ellipsis">{{ getUserDisplayName(alarm) }}</span>
                 </span>
                 <span *ngIf="!alarm.assigneeId" class="unassigned-container" fxLayout="row" fxLayoutAlign="start center">
                   <mat-icon class="material-icons unassigned-icon">account_circle</mat-icon>
                   <span translate>alarm.unassigned</span>
                 </span>
-                <button mat-icon-button [disabled]="isLoading$ | async"
-                        matTooltip="{{ alarm.assign | translate }}"
+                <button *ngIf="allowAssign"
+                        mat-icon-button [disabled]="isLoading$ | async"
+                        matTooltip="{{ 'alarm.assign' | translate }}"
                         matTooltipPosition="above"
                         (click)="openAlarmAssigneePanel($event, alarm)">
                   <mat-icon>
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.scss b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.scss
index aecef669a4..1b5c15b257 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.scss
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.scss
@@ -40,6 +40,8 @@
                 border-radius: 50%;
                 width: 28px;
                 height: 28px;
+                min-width: 28px;
+                min-height: 28px;
                 color: white;
                 font-size: 13px;
                 font-weight: 700;
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.ts
index df2e9c634b..23adc9de37 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.ts
@@ -142,6 +142,7 @@ interface AlarmsTableWidgetSettings extends TableWidgetSettings {
   displayDetails: boolean;
   allowAcknowledgment: boolean;
   allowClear: boolean;
+  allowAssign: boolean;
 }
 
 interface AlarmWidgetActionDescriptor extends TableCellButtonActionDescriptor {
@@ -193,6 +194,7 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
   private displayDetails = true;
   public allowAcknowledgment = true;
   private allowClear = true;
+  public allowAssign = true;
 
   private defaultPageSize = 10;
   private defaultSortOrder = '-' + alarmFields.createdTime.value;
@@ -329,6 +331,7 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
     this.displayDetails = isDefined(this.settings.displayDetails) ? this.settings.displayDetails : true;
     this.allowAcknowledgment = isDefined(this.settings.allowAcknowledgment) ? this.settings.allowAcknowledgment : true;
     this.allowClear = isDefined(this.settings.allowClear) ? this.settings.allowClear : true;
+    this.allowAssign = isDefined(this.settings.allowAssign) ? this.settings.allowAssign : true;
 
     if (this.settings.alarmsTitle && this.settings.alarmsTitle.length) {
       this.alarmsTitlePattern = this.utils.customTranslation(this.settings.alarmsTitle, this.settings.alarmsTitle);
@@ -422,7 +425,7 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
           if (alarmField && alarmField.time) {
             keySettings.columnWidth = '120px';
           }
-          if (alarmField && alarmField.keyName  === alarmFields.assigneeEmail.keyName) {
+          if (alarmField && alarmField.keyName  === alarmFields.assignee.keyName) {
             keySettings.columnWidth = '120px'
           }
         }
@@ -973,7 +976,7 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
           return alarmStatusTranslations.get(value) ? this.translate.instant(alarmStatusTranslations.get(value)) : value;
         } else if (alarmField.value === alarmFields.originatorType.value) {
           return this.translate.instant(entityTypeTranslations.get(value).type);
-        } else if (alarmField.value === alarmFields.assigneeEmail.value) {
+        } else if (alarmField.value === alarmFields.assignee.value) {
           return '';
         }
         else {
@@ -1026,35 +1029,35 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
 
   getUserDisplayName(entity: AlarmInfo) {
     let displayName = '';
-    if ((entity.assigneeFirstName && entity.assigneeFirstName.length > 0) ||
-      (entity.assigneeLastName && entity.assigneeLastName.length > 0)) {
-      if (entity.assigneeFirstName) {
-        displayName += entity.assigneeFirstName;
+    if ((entity.assignee.firstName && entity.assignee.firstName.length > 0) ||
+      (entity.assignee.lastName && entity.assignee.lastName.length > 0)) {
+      if (entity.assignee.firstName) {
+        displayName += entity.assignee.firstName;
       }
-      if (entity.assigneeLastName) {
+      if (entity.assignee.lastName) {
         if (displayName.length > 0) {
           displayName += ' ';
         }
-        displayName += entity.assigneeLastName;
+        displayName += entity.assignee.lastName;
       }
     } else {
-      displayName = entity.assigneeEmail;
+      displayName = entity.assignee.email;
     }
     return displayName;
   }
 
   getUserInitials(entity: AlarmInfo): string {
     let initials = '';
-    if (entity.assigneeFirstName && entity.assigneeFirstName.length ||
-      entity.assigneeLastName && entity.assigneeLastName.length) {
-      if (entity.assigneeFirstName) {
-        initials += entity.assigneeFirstName.charAt(0);
+    if (entity.assignee.firstName && entity.assignee.firstName.length ||
+      entity.assignee.lastName && entity.assignee.lastName.length) {
+      if (entity.assignee.firstName) {
+        initials += entity.assignee.firstName.charAt(0);
       }
-      if (entity.assigneeLastName) {
-        initials += entity.assigneeLastName.charAt(0);
+      if (entity.assignee.lastName) {
+        initials += entity.assignee.lastName.charAt(0);
       }
     } else {
-      initials += entity.assigneeEmail.charAt(0);
+      initials += entity.assignee.email.charAt(0);
     }
     return initials.toUpperCase();
   }
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.html b/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.html
index 8bf3e5a176..59345eeca0 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.html
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.html
@@ -67,6 +67,9 @@
       <mat-slide-toggle formControlName="allowClear">
         {{ 'widgets.table.allow-alarms-clear' | translate }}
       </mat-slide-toggle>
+      <mat-slide-toggle formControlName="allowAssign">
+        {{ 'widgets.table.allow-alarms-assign' | translate }}
+      </mat-slide-toggle>
       <section fxLayout="column" fxLayout.gt-xs="row" fxLayoutGap="8px" fxLayoutAlign.gt-xs="start center">
         <mat-slide-toggle fxFlex formControlName="displayPagination">
           {{ 'widgets.table.display-pagination' | translate }}
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.ts
index 953bde001c..f344cc24b6 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-widget-settings.component.ts
@@ -51,6 +51,7 @@ export class AlarmsTableWidgetSettingsComponent extends WidgetSettingsComponent
       displayDetails: true,
       allowAcknowledgment: true,
       allowClear: true,
+      allowAssign: true,
       displayPagination: true,
       defaultPageSize: 10,
       defaultSortOrder: '-createdTime',
@@ -72,6 +73,7 @@ export class AlarmsTableWidgetSettingsComponent extends WidgetSettingsComponent
       displayDetails: [settings.displayDetails, []],
       allowAcknowledgment: [settings.allowAcknowledgment, []],
       allowClear: [settings.allowClear, []],
+      allowAssign: [settings.allowAssign, []],
       displayPagination: [settings.displayPagination, []],
       defaultPageSize: [settings.defaultPageSize, [Validators.min(1)]],
       defaultSortOrder: [settings.defaultSortOrder, []],
diff --git a/ui-ngx/src/app/shared/models/alarm.models.ts b/ui-ngx/src/app/shared/models/alarm.models.ts
index 2ab7d03169..9ca2ec0290 100644
--- a/ui-ngx/src/app/shared/models/alarm.models.ts
+++ b/ui-ngx/src/app/shared/models/alarm.models.ts
@@ -107,9 +107,13 @@ export interface Alarm extends BaseData<AlarmId> {
 export interface AlarmInfo extends Alarm {
   originatorName: string;
   originatorLabel: string;
-  assigneeFirstName: string;
-  assigneeLastName: string;
-  assigneeEmail: string;
+  assignee: AlarmAssignee;
+}
+
+export interface AlarmAssignee {
+  firstName: string;
+  lastName: string;
+  email: string;
 }
 
 export interface AlarmDataInfo extends AlarmInfo {
@@ -131,9 +135,11 @@ export const simulatedAlarm: AlarmInfo = {
   assignTs: 0,
   originatorName: 'Simulated',
   originatorLabel: 'Simulated',
-  assigneeFirstName: "",
-  assigneeLastName: "",
-  assigneeEmail: "test@example.com",
+  assignee: {
+    firstName: "",
+    lastName: "",
+    email: "test@example.com",
+  },
   originator: {
     entityType: EntityType.DEVICE,
     id: '1'
@@ -221,25 +227,10 @@ export const alarmFields: {[fieldName: string]: AlarmField} = {
     value: 'status',
     name: 'alarm.status'
   },
-  assigneeId: {
-    keyName: 'assigneeId',
-    value: 'assigneeId.id',
-    name: 'alarm.assignee-id'
-  },
-  assigneeFirstName: {
-    keyName: 'assigneeFirstName',
-    value: 'assigneeFirstName',
-    name: 'alarm.assignee-first-name'
-  },
-  assigneeLastName: {
-    keyName: 'assigneeLastName',
-    value: 'assigneeLastName',
-    name: 'alarm.assignee-last-name'
-  },
-  assigneeEmail: {
-    keyName: 'assigneeEmail',
-    value: 'assigneeEmail',
-    name: 'alarm.assignee-email'
+  assignee: {
+    keyName: 'assignee',
+    value: 'assignee',
+    name: 'alarm.assignee'
   }
 };
 
diff --git a/ui-ngx/src/app/shared/models/user.model.ts b/ui-ngx/src/app/shared/models/user.model.ts
index 73fe32f1c9..2080a155c9 100644
--- a/ui-ngx/src/app/shared/models/user.model.ts
+++ b/ui-ngx/src/app/shared/models/user.model.ts
@@ -54,3 +54,10 @@ export interface AuthUser {
   isPublic: boolean;
   authority: Authority;
 }
+
+export interface UserEmailInfo {
+  id: UserId;
+  email: string;
+  firstName: string;
+  lastName: string;
+}
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 2e0be36b3f..137ef4bbb4 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -433,12 +433,7 @@
         "type": "Type",
         "severity": "Severity",
         "originator": "Originator",
-        "originator-label": "Originator label",
         "originator-type": "Originator type",
-        "assignee-id": "Assignee id",
-        "assignee-first-name": "Assignee first name",
-        "assignee-last-name": "Assignee last name",
-        "assignee-email": "Assignee email",
         "details": "Details",
         "originator-label": "Originator label",
         "assign": "Assign",
@@ -4752,7 +4747,8 @@
             "enable-alarm-filter": "Enable alarm filter",
             "display-alarm-details": "Display alarm details",
             "allow-alarms-ack": "Allow alarms acknowledgment",
-            "allow-alarms-clear": "Allow alarms clear"
+            "allow-alarms-clear": "Allow alarms clear",
+            "allow-alarms-assign": "Allow alarms assignment"
         },
         "value-source": {
             "value-source": "Value source",