diff --git a/WebContent/WEB-INF/view/salesMng/proposalFormPopUp.jsp b/WebContent/WEB-INF/view/salesMng/proposalFormPopUp.jsp
index 5410bc8..a6c0aa2 100644
--- a/WebContent/WEB-INF/view/salesMng/proposalFormPopUp.jsp
+++ b/WebContent/WEB-INF/view/salesMng/proposalFormPopUp.jsp
@@ -392,7 +392,21 @@ body {
 }
 </style>
 <script>
+var proposalStatus = "${resultMap.STATUS}";
+var amaranthStatus = "${resultMap.AMARANTH_STATUS}";
+var isReadOnly = (proposalStatus == "approvalComplete" || proposalStatus == "approvalRequest"
+                 || amaranthStatus == "complete" || amaranthStatus == "inProcess");
+
 $(document).ready(function(){
+    // 결재완료/결재중이면 수정 불가 처리
+    if(isReadOnly){
+        $("input[type='text']").prop("readonly", true).css("background-color", "#f5f5f5");
+        $("select").prop("disabled", true).css("background-color", "#f5f5f5");
+        $("textarea").prop("readonly", true).css("background-color", "#f5f5f5");
+        $("#btnSave").hide();
+        $(".date_icon").removeClass("date_icon");
+    }
+    
     // 닫기 버튼
     $("#btnClose").click(function(){
         self.close();
@@ -408,12 +422,14 @@ $(document).ready(function(){
         fn_save();
     });
     
-    // 날짜 피커 초기화
-    $(".date_icon").datepicker({
-        dateFormat: 'yy-mm-dd',
-        changeMonth: true,
-        changeYear: true
-    });
+    // 날짜 피커 초기화 (수정 가능할 때만)
+    if(!isReadOnly){
+        $(".date_icon").datepicker({
+            dateFormat: 'yy-mm-dd',
+            changeMonth: true,
+            changeYear: true
+        });
+    }
 });
 
 // 숫자 포맷팅
@@ -424,6 +440,10 @@ function formatNumber(num) {
 
 // 저장 함수
 function fn_save(){
+    if(isReadOnly){
+        Swal.fire({ icon:'warning', title:'수정 불가', text:'결재완료 또는 결재중인 품의서는 수정할 수 없습니다.' });
+        return;
+    }
     // 품목 정보 수집
     var partList = [];
     $(".part-row").each(function(){
diff --git a/src/com/pms/api/AmaranthApprovalApiClient.java b/src/com/pms/api/AmaranthApprovalApiClient.java
index 3f5b681..794d049 100644
--- a/src/com/pms/api/AmaranthApprovalApiClient.java
+++ b/src/com/pms/api/AmaranthApprovalApiClient.java
@@ -1139,6 +1139,14 @@ public class AmaranthApprovalApiClient {
      * 원챔버 업로드 응답에서 list 배열의 첫 번째 항목 JSON 추출
      */
     public String extractListItemFromUploadResponse(String jsonResponse) {
+        return extractListItemFromUploadResponse(jsonResponse, null);
+    }
+    
+    /**
+     * 원챔버 업로드 응답에서 list 항목 추출 + name 필드 보강
+     * 아마란스 프론트엔드(downloadFileLocal)에서 name 필드가 필수
+     */
+    public String extractListItemFromUploadResponse(String jsonResponse, String originalFileName) {
         int listIdx = jsonResponse.indexOf("\"list\":[");
         if (listIdx == -1) return null;
         
@@ -1146,7 +1154,6 @@ public class AmaranthApprovalApiClient {
         int objStart = jsonResponse.indexOf("{", arrStart);
         if (objStart == -1) return null;
         
-        // 중첩 중괄호를 고려하여 닫는 중괄호 찾기
         int depth = 0;
         int objEnd = -1;
         for (int i = objStart; i < jsonResponse.length(); i++) {
@@ -1162,7 +1169,15 @@ public class AmaranthApprovalApiClient {
         }
         
         if (objEnd == -1) return null;
-        return jsonResponse.substring(objStart, objEnd + 1);
+        String listItem = jsonResponse.substring(objStart, objEnd + 1);
+        
+        // name 필드가 없으면 원본 파일명 주입
+        if (originalFileName != null && !originalFileName.isEmpty() && !listItem.contains("\"name\"")) {
+            listItem = listItem.substring(0, listItem.length() - 1) 
+                     + ",\"name\":\"" + escapeJson(originalFileName) + "\"}";
+        }
+        
+        return listItem;
     }
     
     /**
diff --git a/src/com/pms/mapper/approval.xml b/src/com/pms/mapper/approval.xml
index 12a00cd..5b6836d 100644
--- a/src/com/pms/mapper/approval.xml
+++ b/src/com/pms/mapper/approval.xml
@@ -643,11 +643,15 @@
 		)
 	</insert>
 	
-	<!-- 기존 매핑 갱신 (재상신 시 - approKey는 유지) -->
+	<!-- 기존 매핑 갱신 (재상신 시 - 반려 건은 새 approKey로 교체) -->
 	<update id="updateAmaranthApprovalResubmit" parameterType="map">
 		UPDATE AMARANTH_APPROVAL SET 
+			APPRO_KEY = #{approKey},
 			APPROVAL_TITLE = #{approvalTitle},
 			WRITER = #{writer},
+			STATUS = 'create',
+			AMARANTH_DOC_ID = NULL,
+			DOC_STS = '0',
 			UPDATE_DATE = NOW()
 		WHERE TARGET_OBJID = #{targetObjId} AND TARGET_TYPE = #{targetType}
 	</update>
diff --git a/src/com/pms/mapper/salesMng.xml b/src/com/pms/mapper/salesMng.xml
index df61bee..29a9623 100644
--- a/src/com/pms/mapper/salesMng.xml
+++ b/src/com/pms/mapper/salesMng.xml
@@ -4990,9 +4990,13 @@ ORDER BY V.PATH2
 		SRM.EXECUTOR,
 		SRM.EXECUTION_DATE,
 		TO_CHAR(SRM.EXECUTION_DATE, 'YYYY-MM-DD') AS EXECUTION_DATE_TITLE,
-		SRM.TITLE
+		SRM.TITLE,
+		COALESCE(AMR.STATUS, '') AS AMARANTH_STATUS
 	FROM 
 		SALES_REQUEST_MASTER SRM
+		LEFT OUTER JOIN AMARANTH_APPROVAL AMR
+			ON SRM.OBJID::VARCHAR = AMR.TARGET_OBJID
+			AND AMR.TARGET_TYPE = 'PROPOSAL'
 	WHERE 
 		SRM.OBJID = #{PROPOSAL_OBJID}
 </select>
diff --git a/src/com/pms/service/ApprovalService.java b/src/com/pms/service/ApprovalService.java
index 73a5dae..26d978a 100644
--- a/src/com/pms/service/ApprovalService.java
+++ b/src/com/pms/service/ApprovalService.java
@@ -1809,7 +1809,7 @@ public class ApprovalService {
 			String compSeq = CommonUtils.checkNull(paramMap.get("compSeq"), "1000");
 			String deptSeq = CommonUtils.checkNull(paramMap.get("deptSeq"));
 			
-			// DB에서 기존 매핑 조회 → 있으면 approKey 재사용, 없으면 신규 생성
+			// DB에서 기존 매핑 조회 → 상태에 따라 approKey 재사용 또는 신규 생성
 			sqlSession = SqlMapConfig.getInstance().getSqlSession(false);
 			Map<String, Object> mappingParam = new HashMap();
 			mappingParam.put("targetType", targetType);
@@ -1821,9 +1821,18 @@ public class ApprovalService {
 			String approKey;
 			boolean isNewRecord;
 			if(existing != null){
-				approKey = CommonUtils.checkNull(existing.get("APPRO_KEY"));
-				isNewRecord = false;
-				System.out.println("=== 기존 approKey 재사용: " + approKey + " ===");
+				String existingStatus = CommonUtils.checkNull(existing.get("STATUS"));
+				
+				// 반려/삭제된 건은 새 approKey로 신규 상신 (기존 approKey는 아마란스에 반려 문서로 남아있어 재사용 불가)
+				if("reject".equals(existingStatus) || "delete".equals(existingStatus)){
+					approKey = "UB_" + java.util.UUID.randomUUID().toString();
+					isNewRecord = false;
+					System.out.println("=== 반려/삭제 건 재상신 - 신규 approKey 생성: " + approKey + " (기존 상태: " + existingStatus + ") ===");
+				} else {
+					approKey = CommonUtils.checkNull(existing.get("APPRO_KEY"));
+					isNewRecord = false;
+					System.out.println("=== 기존 approKey 재사용: " + approKey + " (상태: " + existingStatus + ") ===");
+				}
 			} else {
 				approKey = "UB_" + java.util.UUID.randomUUID().toString();
 				isNewRecord = true;
@@ -1973,13 +1982,13 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, tempFile, tempFileName
 					);
 					
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] HTML 업로드 성공");
-					}
-					tempFile.delete();
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, tempFileName);
+				if(listItem != null){
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] HTML 업로드 성공");
+				}
+				tempFile.delete();
 				}
 			} catch(Exception htmlEx){
 				System.err.println("[첨부파일] HTML 생성/업로드 오류: " + htmlEx.getMessage());
@@ -2018,15 +2027,15 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, physicalFile, originalName
 					);
 					
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						if(uploadCount > 0) listItems.append(",");
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] 업로드 성공: " + originalName);
-					} else {
-						System.err.println("[첨부파일] 업로드 응답에서 list 항목 추출 실패: " + originalName);
-					}
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, originalName);
+				if(listItem != null){
+					if(uploadCount > 0) listItems.append(",");
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] 업로드 성공: " + originalName);
+				} else {
+					System.err.println("[첨부파일] 업로드 응답에서 list 항목 추출 실패: " + originalName);
+				}
 				}
 			}
 			
@@ -2097,14 +2106,14 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, tempFile, tempFileName
 					);
 
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] 주문서 HTML 업로드 성공");
-					}
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, tempFileName);
+				if(listItem != null){
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] 주문서 HTML 업로드 성공");
+				}
 
-					tempFile.delete();
+				tempFile.delete();
 				}
 			} catch(Exception htmlEx){
 				System.err.println("[첨부파일] 주문서 HTML 생성/업로드 오류: " + htmlEx.getMessage());
@@ -2138,22 +2147,22 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, physicalFile, originalName
 					);
 
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						if(uploadCount > 0) listItems.append(",");
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] 업로드 성공: " + originalName);
-					}
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, originalName);
+				if(listItem != null){
+					if(uploadCount > 0) listItems.append(",");
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] 업로드 성공: " + originalName);
 				}
 			}
+		}
 
-			if(uploadCount == 0) return null;
+		if(uploadCount == 0) return null;
 
-			String fileListJson = "[" + listItems.toString() + "]";
-			String fileListEncoded = java.net.URLEncoder.encode(fileListJson, "UTF-8");
+		String fileListJson = "[" + listItems.toString() + "]";
+		String fileListEncoded = java.net.URLEncoder.encode(fileListJson, "UTF-8");
 
-			System.out.println("[첨부파일] 주문서 총 " + uploadCount + "건 업로드 완료");
+		System.out.println("[첨부파일] 주문서 총 " + uploadCount + "건 업로드 완료");
 
 			return fileListEncoded;
 
@@ -2484,12 +2493,12 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, tempFile, tempFileName
 					);
 					
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] 견적서 HTML 업로드 성공");
-					}
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, tempFileName);
+				if(listItem != null){
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] 견적서 HTML 업로드 성공");
+				}
 					
 					tempFile.delete();
 				}
@@ -2525,15 +2534,15 @@ public class ApprovalService {
 						AMARANTH_BASE_URL, authToken, userHashKey, empSeq, physicalFile, originalName
 					);
 					
-					String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse);
-					if(listItem != null){
-						if(uploadCount > 0) listItems.append(",");
-						listItems.append(listItem);
-						uploadCount++;
-						System.out.println("[첨부파일] 업로드 성공: " + originalName);
-					}
+				String listItem = apiClient.extractListItemFromUploadResponse(uploadResponse, originalName);
+				if(listItem != null){
+					if(uploadCount > 0) listItems.append(",");
+					listItems.append(listItem);
+					uploadCount++;
+					System.out.println("[첨부파일] 업로드 성공: " + originalName);
 				}
 			}
+			}
 			
 			if(uploadCount == 0) return null;