diff --git a/projects/ucap-webmessenger-app/src/assets/i18n/en.json b/projects/ucap-webmessenger-app/src/assets/i18n/en.json
index 3b5cf858..9463f2a5 100644
--- a/projects/ucap-webmessenger-app/src/assets/i18n/en.json
+++ b/projects/ucap-webmessenger-app/src/assets/i18n/en.json
@@ -213,8 +213,8 @@
       "showMassDetail": "Show detail",
       "readToHere": "Read to here",
       "recalled": "Recalled",
-      "videoConferenceTypeNow": "[Video Meeting] Processing..",
-      "videoConferenceTypeNew": "[Video Meeting] Registered",
+      "videoConferenceTypeNow": "[Video Meeting] Registered",
+      "videoConferenceTypeNew": "[Video Meeting] Reservation",
       "videoConferenceTypeUpdate": "[Video Meeting] Modified",
       "videoConferenceTypeDelete": "[Video Meeting] Deleted",
       "videoConferenceRegister": "Establisher",
@@ -300,6 +300,7 @@
       "failToSending": "The message failed to send.",
       "failToModify": "The message failed to modify.",
       "minTimeReservation": "It can be set only 30 minutes after the current time.",
+      "cancelledError": "The message failed to cancel.",
       "cancelledMessage": "This message has been cancelled."
     }
   },
diff --git a/projects/ucap-webmessenger-app/src/assets/i18n/ko.json b/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
index 0041536e..ed8210b3 100644
--- a/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
+++ b/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
@@ -213,8 +213,8 @@
       "showMassDetail": "전체 보기",
       "readToHere": "여기까지 읽었습니다.",
       "recalled": "회수된 메시지",
-      "videoConferenceTypeNow": "[화상회의] 진행중",
-      "videoConferenceTypeNew": "[화상회의] 등록",
+      "videoConferenceTypeNow": "[화상회의] 개설",
+      "videoConferenceTypeNew": "[화상회의] 예약",
       "videoConferenceTypeUpdate": "[화상회의] 수정",
       "videoConferenceTypeDelete": "[화상회의] 삭제",
       "videoConferenceRegister": "개설자",
@@ -300,6 +300,7 @@
       "failToSending": "쪽지를 전송에 실패 하였습니다.",
       "failToModify": "쪽지 수정에 실패 하였습니다.",
       "minTimeReservation": "현재 시각으로부터 30분 이후로만 설정 가능합니다.",
+      "cancelledError": "발송 취소에 실패 하였습니다.",
       "cancelledMessage": "발송 취소된 쪽지 입니다."
     }
   },
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/types/video-conference.type.ts b/projects/ucap-webmessenger-protocol-event/src/lib/types/video-conference.type.ts
index 512453d3..57927e9a 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/types/video-conference.type.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/types/video-conference.type.ts
@@ -1,6 +1,10 @@
 export enum VideoConferenceContentsType {
+  /** 개설 */
   Now = 'CONF_CONTENTS_NOW',
+  /** 예약 */
   New = 'CONF_CONTENTS_NEW',
+  /** 수정 */
   Update = 'CONF_CONTENTS_UPDATE',
+  /** 삭제 */
   Delete = 'CONF_CONTENTS_DELETE'
 }