diff --git a/src/main/java/com/eactive/apim/portal/approval/entity/Approval.java b/src/main/java/com/eactive/apim/portal/approval/entity/Approval.java
index 0ddfc7d..de1f444 100644
--- a/src/main/java/com/eactive/apim/portal/approval/entity/Approval.java
+++ b/src/main/java/com/eactive/apim/portal/approval/entity/Approval.java
@@ -75,4 +75,7 @@ public class Approval implements Serializable, com.eactive.eai.data.Data {
     @Column(length = 17, name = "end_date")
     @Convert(converter = LocalDateTimeToStringConverter17.class)
     private LocalDateTime approvalDate;
+    
+    @Column(name = "expect_end_date")
+    private String expectEndDate;  //예상완료일
 }
diff --git a/src/main/java/com/eactive/apim/portal/approval/statemachine/ApprovalState.java b/src/main/java/com/eactive/apim/portal/approval/statemachine/ApprovalState.java
index 8752df7..362cd06 100644
--- a/src/main/java/com/eactive/apim/portal/approval/statemachine/ApprovalState.java
+++ b/src/main/java/com/eactive/apim/portal/approval/statemachine/ApprovalState.java
@@ -28,4 +28,8 @@ public interface ApprovalState extends Serializable {
     }
 
     String getDescription();
+
+    default String getCode() {
+        return toString();
+    }
 }
diff --git a/src/main/java/com/eactive/apim/portal/qna/entity/InquiryComment.java b/src/main/java/com/eactive/apim/portal/qna/entity/InquiryComment.java
new file mode 100644
index 0000000..c76efe3
--- /dev/null
+++ b/src/main/java/com/eactive/apim/portal/qna/entity/InquiryComment.java
@@ -0,0 +1,38 @@
+package com.eactive.apim.portal.qna.entity;
+
+import com.eactive.apim.portal.common.entity.Auditable;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import org.hibernate.annotations.GenericGenerator;
+
+import javax.persistence.*;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "PTL_INQUIRY_COMMENT")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(exclude = "inquiry")
+public class InquiryComment extends Auditable implements Serializable {
+
+    @Id
+    @Column(name = "id", length = 36, nullable = false)
+    @GenericGenerator(name = "uuid-gen", strategy = "uuid2")
+    @GeneratedValue(generator = "uuid-gen", strategy = GenerationType.IDENTITY)
+    private String id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "INQUIRY_ID", nullable = false, foreignKey = @ForeignKey(ConstraintMode.NO_CONSTRAINT))
+    private Inquiry inquiry;
+
+    @Lob
+    @Column(name = "COMMENT_DETAIL")
+    private String commentDetail;
+
+    @Column(name = "DEL_YN", length = 1)
+    private String delYn = "N";
+
+    @Column(name = "ADMIN_YN", length = 1)
+    private String adminYn = "N";
+}
diff --git a/src/main/java/com/eactive/apim/portal/template/entity/MessageCode.java b/src/main/java/com/eactive/apim/portal/template/entity/MessageCode.java
index f1ed410..bd18da5 100644
--- a/src/main/java/com/eactive/apim/portal/template/entity/MessageCode.java
+++ b/src/main/java/com/eactive/apim/portal/template/entity/MessageCode.java
@@ -29,6 +29,12 @@ public enum MessageCode {
     // 관리자 영역
     APP_REGISTER_APPROVED("앱 등록 승인", "FM_APIM009", Channels.EMAIL),
     APP_REGISTER_REJECTED("앱 등록 거절", "FM_APIM010", Channels.EMAIL),
+    
+    
+    // API상태 모니터링
+    API_STATUS_CHANGED("API 상태 변화", "FM_APIM011", Channels.MESSENGER),
+    // 유량제어 토큰 획득 실패
+    INFLOW_TOKEN_FAILED("유량제어 토큰 획득 실패", "FM_APIM012", Channels.MESSENGER),
 
 
     // 미 사용, 미 분류
@@ -115,6 +121,7 @@ public enum MessageCode {
         NONE            (0b0000),
         EMAIL           (0b0001),
         KAKAO_ALIMTALK  (0b0010),
+        MESSENGER		(0b0100),
         ;
 
         @Getter
diff --git a/src/main/java/com/eactive/apim/portal/template/service/MessageSendService.java b/src/main/java/com/eactive/apim/portal/template/service/MessageSendService.java
index f16bdb4..d6c70a1 100644
--- a/src/main/java/com/eactive/apim/portal/template/service/MessageSendService.java
+++ b/src/main/java/com/eactive/apim/portal/template/service/MessageSendService.java
@@ -111,20 +111,17 @@ public class MessageSendService {
             logger.debug(emailRequest.toString());
         }
 
-        //메신저는 사용하지 않아서 주석 처리함.
-//        if (template.getEnableMessenger().equalsIgnoreCase("Y")) {
-//            MessageRequest messengerRequest = new MessageRequest();
-//            messengerRequest.setMessageCode(MessageRequestEnums.MessageCode.valueOf(template.getMessageCode()));
-//            messengerRequest.setSubject(subject);
-//            String messengerTemplate = buildMessage(template.getMessengerTemplate(), messageParams);
-//            messengerRequest.setMessage(messengerTemplate);
-//            messengerRequest.setRequestDate(LocalDateTime.now());
-//            messengerRequest.setUsername(user.getUsername());
-//            messengerRequest.setMessengerId(user.getMessengerId());
-//            messengerRequest.setEaiInterfaceId();
-//            messengerRequest.setServiceId();
-//            messageRequestRepository.save(messengerRequest);
-//        }
+        if (template.getEnableMessenger().equalsIgnoreCase("Y")) {
+            MessageRequest messengerRequest = new MessageRequest();
+            messengerRequest.setMessageCode(MessageCode.valueOf(template.getMessageCode()));
+            messengerRequest.setSubject(subject);
+            String messengerTemplate = buildMessage(template.getMessengerTemplate(), messageParams);
+            messengerRequest.setMessage(messengerTemplate);
+            messengerRequest.setRequestDate(LocalDateTime.now());
+            messengerRequest.setUsername(user.getUsername());
+            messengerRequest.setMessengerId(user.getUserId());
+            messageRequestRepository.save(messengerRequest);
+        }
     }
 
     private void updateMessageParams(MessageRecipient user, Map<String, String> messageParams) {