diff --git a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
index 4db4588c..b6997e94 100644
--- a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
@@ -24,7 +24,7 @@ import {
   QueryProtocolService
 } from '@ucap-webmessenger/protocol-query';
 import { StatusProtocolService } from '@ucap-webmessenger/protocol-status';
-import { StatusType, StatusCode } from '@ucap-webmessenger/core';
+import { StatusType, StatusCode, DeviceType } from '@ucap-webmessenger/core';
 import {
   DialogService,
   ConfirmDialogComponent,
@@ -53,7 +53,9 @@ import { SessionStorageService } from '@ucap-webmessenger/web-storage';
 import {
   MessageApiService,
   MessageType,
-  DetailRequest
+  DetailRequest,
+  MessageDetailInfo,
+  DelRequest
 } from '@ucap-webmessenger/api-message';
 import { MessageStatusCode } from '@ucap-webmessenger/api';
 import {
@@ -166,10 +168,10 @@ export class MainPageComponent implements OnInit, OnDestroy {
             } as DetailRequest)
             .pipe(
               take(1),
-              map(res => {
+              map(async res => {
                 if (res.responseCode === MessageStatusCode.Success) {
                   // detail view..
-                  this.dialogService.open<
+                  const result = await this.dialogService.open<
                     MessageDetailDialogComponent,
                     MessageDetailDialogData,
                     MessageDetailDialogResult
@@ -182,7 +184,14 @@ export class MainPageComponent implements OnInit, OnDestroy {
                     }
                   });
 
-                  // this.changeDetectorRef.detectChanges();
+                  if (!!result) {
+                    switch (result.returnType) {
+                      case 'DEL':
+                        // 단건 삭제.
+                        this.doMessageDelete([result.messageInfo]);
+                        break;
+                    }
+                  }
                 } else {
                 }
               }),
@@ -377,4 +386,29 @@ export class MainPageComponent implements OnInit, OnDestroy {
   onCloseRightDrawer() {
     this.rightDrawer.close();
   }
+
+  /** 쪽지(수신,발신) 삭제 */
+  doMessageDelete(messageInfo: MessageDetailInfo[]): void {
+    const msgList: { msgId: number }[] = [];
+    messageInfo.forEach(info => msgList.push({ msgId: info.msgId }));
+    this.messageApiService
+      .deleteMessage({
+        userSeq: this.loginRes.userSeq,
+        deviceType: DeviceType.PC,
+        tokenKey: this.loginRes.tokenString,
+        type: messageInfo[0].type,
+        msgList
+      } as DelRequest)
+      .pipe(
+        take(1),
+        map(async res => {
+          if (res.responseCode === MessageStatusCode.Success) {
+          } else {
+            this.logger.error('message delete Error!');
+          }
+        }),
+        catchError(error => of(this.logger.error(error)))
+      )
+      .subscribe();
+  }
 }
diff --git a/projects/ucap-webmessenger-app/src/app/services/native.service.ts b/projects/ucap-webmessenger-app/src/app/services/native.service.ts
index 41eb4c89..f10c25e1 100644
--- a/projects/ucap-webmessenger-app/src/app/services/native.service.ts
+++ b/projects/ucap-webmessenger-app/src/app/services/native.service.ts
@@ -1,4 +1,4 @@
-import { Injectable, Inject } from '@angular/core';
+import { Injectable, Inject, NgZone } from '@angular/core';
 import { DOCUMENT } from '@angular/common';
 import {
   UCAP_NATIVE_SERVICE,
@@ -30,6 +30,7 @@ export class AppNativeService {
     private publicApiService: PublicApiService,
     private sessionStorageService: SessionStorageService,
     @Inject(DOCUMENT) private document: Document,
+    private ngZone: NgZone,
     private store: Store<any>,
     private logger: NGXLogger
   ) {}
@@ -40,7 +41,9 @@ export class AppNativeService {
     });
     this.nativeService.changeStatus().subscribe(statusCode => {});
     this.nativeService.showSetting().subscribe(() => {
-      this.store.dispatch(SettingsStore.showDialog());
+      this.ngZone.run(() => {
+        this.store.dispatch(SettingsStore.showDialog());
+      });
     });
   }
 
diff --git a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
index 7553bc51..a92251d3 100644
--- a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
+++ b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
@@ -190,7 +190,8 @@ export class AppNotificationService {
                           ? true
                           : false,
                       displayTime:
-                        appUserInfo.settings.notification.alertExposureTime
+                        appUserInfo.settings.notification.alertExposureTime *
+                        1000
                     };
                     this.nativeService.notify(notiReq);
                   }
@@ -540,7 +541,7 @@ export class AppNotificationService {
                         ? true
                         : false,
                     displayTime:
-                      appUserInfo.settings.notification.alertExposureTime
+                      appUserInfo.settings.notification.alertExposureTime * 1000
                   };
                   this.nativeService.notify(notiReq);
                 }