diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.html
index a56a1a1c..3c7629cd 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.html
@@ -1,16 +1,31 @@
-<div class="oraganization-tab" fxLayout="column" *ngIf="departmentInfoList$ | async">
+<div
+  class="oraganization-tab"
+  fxLayout="column"
+  *ngIf="departmentInfoList$ | async"
+>
   <div class="oraganization-tab-tree" fxFlex="40" style="overflow: scroll">
-    <ucap-organization-tree [oraganizationList]="departmentInfoList$ | async"
-      (selected)="onSelectedOrganization($event)"></ucap-organization-tree>
+    <ucap-organization-tree
+      [oraganizationList]="departmentInfoList$ | async"
+      (selected)="onSelectedOrganization($event)"
+    ></ucap-organization-tree>
   </div>
-  <div fxFlex="60" >
+  <div fxFlex="60">
     <div class="select-dept">
-      (선택된부서명)
+      {{ getSelectedDepartmentName() }}
     </div>
-    <div class="select-list" >
-      <ucap-profile-user-list-item *ngFor="let userInfo of selectedDepartmentUserInfoList$ | async"
-        [userInfo]="userInfo" [checkable]="true" [sessionVerinfo]="sessionVerinfo" [selectedUserList]="selectedUserList"
-        [isChecked]="getCheckedUser(userInfo)" (checkUser)="onCheckUser($event)">
+    <div *ngIf="selectedDepartmentProcessing">
+      <mat-progress-bar mode="indeterminate"></mat-progress-bar>
+    </div>
+    <div class="select-list">
+      <ucap-profile-user-list-item
+        *ngFor="let userInfo of selectedDepartmentUserInfoList$ | async"
+        [userInfo]="userInfo"
+        [checkable]="true"
+        [sessionVerinfo]="sessionVerinfo"
+        [selectedUserList]="selectedUserList"
+        [isChecked]="getCheckedUser(userInfo)"
+        (checkUser)="onCheckUser($event)"
+      >
       </ucap-profile-user-list-item>
     </div>
   </div>
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.scss b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.scss
index 1558c8ce..ca14095b 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.scss
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.scss
@@ -5,25 +5,24 @@
     overflow-y: auto;
   }
 }
-.btn-box{
-  height:80px;
+.btn-box {
+  height: 80px;
   position: absolute;
-  bottom:0;
-  border-top:1px solid #ddd;
+  bottom: 0;
+  border-top: 1px solid #ddd;
   align-items: center;
-  width:100%;
-  background-color:#ffffff;
+  width: 100%;
+  background-color: #ffffff;
 }
-.select-dept{
-  border-top:1px solid #dddddd;
-  height:40px;
-  width:100%;
-  display:inline-flex;
+.select-dept {
+  border-top: 1px solid #dddddd;
+  height: 40px;
+  width: 100%;
+  display: inline-flex;
   align-items: center;
-  padding:0 10px;
+  padding: 0 10px;
 }
-.select-list{
-    height: calc(100% - 120px);
-    overflow: auto;
+.select-list {
+  height: calc(100% - 120px);
+  overflow: auto;
 }
-
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
index 78161ad3..e40e0ecb 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/organization.component.ts
@@ -1,6 +1,13 @@
-import { Component, OnInit, Output, EventEmitter, Input } from '@angular/core';
+import {
+  Component,
+  OnInit,
+  OnDestroy,
+  Output,
+  EventEmitter,
+  Input
+} from '@angular/core';
 import { ucapAnimations } from '@ucap-webmessenger/ui';
-import { Observable } from 'rxjs';
+import { Observable, Subscription } from 'rxjs';
 import {
   DeptInfo,
   QueryProtocolService,
@@ -18,7 +25,7 @@ import * as AppStore from '@app/store';
 import * as QueryStore from '@app/store/messenger/query';
 import { SessionStorageService } from '@ucap-webmessenger/web-storage';
 import { LoginInfo, KEY_LOGIN_INFO } from '@app/types';
-import { take, map, switchMap } from 'rxjs/operators';
+import { take, map, tap, delay } from 'rxjs/operators';
 import { VersionInfo2Response } from '@ucap-webmessenger/api-public';
 import { KEY_VER_INFO } from '@app/types/ver-info.type';
 
@@ -28,7 +35,7 @@ import { KEY_VER_INFO } from '@app/types/ver-info.type';
   styleUrls: ['./organization.component.scss'],
   animations: ucapAnimations
 })
-export class OrganizationComponent implements OnInit {
+export class OrganizationComponent implements OnInit, OnDestroy {
   @Input()
   /** 사용자 선택용으로 사용시 true 로 유입 */
   isUserSelect = false;
@@ -45,6 +52,9 @@ export class OrganizationComponent implements OnInit {
   departmentInfoList$: Observable<DeptInfo[]>;
   selectedDepartmentUserInfoList$: Observable<UserInfoSS[]>;
   selectedDepartmentStatus$: Observable<DeptUserResponse>;
+  selectedDepartmentProcessing = false;
+  selectedDepartmentProcessingSubscription: Subscription;
+  selectedDepartmentName: string;
 
   loginInfo = this.sessionStorageService.get<LoginInfo>(KEY_LOGIN_INFO);
   sessionVerinfo = this.sessionStorageService.get<VersionInfo2Response>(
@@ -62,6 +72,19 @@ export class OrganizationComponent implements OnInit {
     this.departmentInfoList$ = this.store.pipe(
       select(AppStore.MessengerSelector.QuerySelector.departmentInfoList)
     );
+
+    this.selectedDepartmentProcessingSubscription = this.store
+      .pipe(
+        delay(0),
+        select(
+          AppStore.MessengerSelector.QuerySelector.selectedDepartmentProcessing
+        ),
+        tap(processing => {
+          this.selectedDepartmentProcessing = processing;
+        })
+      )
+      .subscribe();
+
     this.selectedDepartmentUserInfoList$ = this.store.pipe(
       select(
         AppStore.MessengerSelector.QuerySelector.selectedDepartmentUserInfoList
@@ -87,11 +110,21 @@ export class OrganizationComponent implements OnInit {
               senderEmployeeType: loginRes.userInfo.employeeType
             })
           );
+          return loginRes;
+        }),
+        map(loginRes => {
+          this.selectedDepartmentName = loginRes.userInfo.deptName;
         })
       )
       .subscribe();
   }
 
+  ngOnDestroy(): void {
+    if (!!this.selectedDepartmentProcessingSubscription) {
+      this.selectedDepartmentProcessingSubscription.unsubscribe();
+    }
+  }
+
   onSelectedOrganization(deptInfo: DeptInfo) {
     this.store
       .pipe(
@@ -109,11 +142,26 @@ export class OrganizationComponent implements OnInit {
               senderEmployeeType: loginRes.userInfo.employeeType
             })
           );
+        }),
+        map(() => {
+          this.selectedDepartmentName = deptInfo.name;
         })
       )
       .subscribe();
   }
 
+  getSelectedDepartmentName() {
+    if (!!this.selectedDepartmentProcessing) {
+      return '부서조회중..';
+    }
+
+    if (!!this.selectedDepartmentName) {
+      return this.selectedDepartmentName;
+    } else {
+      return '조회중..';
+    }
+  }
+
   /** 리스트 checkable 할 경우 checkbox 의 isChecked 를 관장하며 리스트의 전체선택 여부를 판단한다. */
   getCheckedUser(userInfo: UserInfo | UserInfoSS | UserInfoF | UserInfoDN) {
     if (!!this.selectedUserList && this.selectedUserList.length > 0) {
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/dialogs/chat/create-chat.dialog.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/dialogs/chat/create-chat.dialog.component.html
index 74c41d99..2bf4e6d5 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/dialogs/chat/create-chat.dialog.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/dialogs/chat/create-chat.dialog.component.html
@@ -83,19 +83,17 @@
         </mat-tab-group>
       </div>
       <div fxFlex="150px">
-        <ul>
-          <li *ngFor="let userInfo of selectedUserList">
+        <mat-chip-list aria-label="User selection">
+          <mat-chip
+            *ngFor="let userInfo of selectedUserList"
+            color="primary"
+            selected
+            (removed)="onClickDeleteUser(userInfo)"
+          >
             {{ userInfo.name }}
-            <button
-              mat-icon-button
-              aria-label="Delete user"
-              (click)="onClickDeleteUser(userInfo)"
-            >
-              <mat-icon>close</mat-icon>
-            </button>
-            <mat-icon></mat-icon>
-          </li>
-        </ul>
+            <mat-icon matChipRemove>clear</mat-icon>
+          </mat-chip>
+        </mat-chip-list>
       </div>
     </div>
   </mat-card-content>
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/messenger.layout.module.ts b/projects/ucap-webmessenger-app/src/app/layouts/messenger/messenger.layout.module.ts
index bb2012de..0f96942a 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/messenger.layout.module.ts
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/messenger.layout.module.ts
@@ -1,3 +1,4 @@
+import { MatChipsModule } from '@angular/material/chips';
 import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
 
@@ -49,6 +50,7 @@ import { ReactiveFormsModule } from '@angular/forms';
     MatProgressBarModule,
     MatTabsModule,
     MatToolbarModule,
+    MatChipsModule,
     UCapUiModule,
     UCapUiChatModule,
     UCapUiRoomModule,
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
index 1cf7e2c0..4e26fb20 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
@@ -1,6 +1,12 @@
 import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
-import { authSuccess, deptSuccess, deptUserSuccess } from './actions';
+import {
+  authSuccess,
+  deptSuccess,
+  deptUserSuccess,
+  deptUser,
+  deptUserFailure
+} from './actions';
 
 import * as AuthenticationStore from '@app/store/account/authentication';
 
@@ -20,13 +26,29 @@ export const reducer = createReducer(
     };
   }),
 
+  on(deptUser, (state, action) => {
+    return {
+      ...state,
+      selectedDepartmentProcessing: true
+    };
+  }),
+
   on(deptUserSuccess, (state, action) => {
     return {
       ...state,
       selectedDepartmentUserInfoList: action.userInfos,
-      selectedDepartmentStatus: action.res
+      selectedDepartmentStatus: action.res,
+      selectedDepartmentProcessing: false
     };
   }),
+
+  on(deptUserFailure, (state, action) => {
+    return {
+      ...state,
+      selectedDepartmentProcessing: false
+    };
+  }),
+
   on(AuthenticationStore.logout, (state, action) => {
     return {
       ...initialState
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/query/state.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/query/state.ts
index 03340cf0..7947a52b 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/query/state.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/query/state.ts
@@ -13,13 +13,15 @@ export interface State {
 
   selectedDepartmentUserInfoList: UserInfoSS[] | null;
   selectedDepartmentStatus: DeptUserResponse | null;
+  selectedDepartmentProcessing: boolean;
 }
 
 export const initialState: State = {
   auth: null,
   departmentInfoList: null,
   selectedDepartmentUserInfoList: null,
-  selectedDepartmentStatus: null
+  selectedDepartmentStatus: null,
+  selectedDepartmentProcessing: false
 };
 
 export function selectors<S>(selector: Selector<any, State>) {
@@ -39,6 +41,10 @@ export function selectors<S>(selector: Selector<any, State>) {
     selectedDepartmentStatus: createSelector(
       selector,
       (state: State) => state.selectedDepartmentStatus
+    ),
+    selectedDepartmentProcessing: createSelector(
+      selector,
+      (state: State) => state.selectedDepartmentProcessing
     )
   };
 }
diff --git a/projects/ucap-webmessenger-protocol-sync/src/lib/protocols/group.ts b/projects/ucap-webmessenger-protocol-sync/src/lib/protocols/group.ts
index a1a9405c..f1a20682 100644
--- a/projects/ucap-webmessenger-protocol-sync/src/lib/protocols/group.ts
+++ b/projects/ucap-webmessenger-protocol-sync/src/lib/protocols/group.ts
@@ -43,7 +43,7 @@ export const encodeGroup: ProtocolEncoder<GroupRequest> = (
 ) => {
   const bodyList: PacketBody[] = [];
 
-  bodyList.push({ type: PacketBodyValue.String, value: req.syncDate || '' });
+  bodyList.push({ type: PacketBodyValue.String, value: req.syncDate || ' ' });
   return bodyList;
 };