diff --git a/src/main/java/com/eactive/eai/rms/onl/transaction/apim/ApiInterfaceService.java b/src/main/java/com/eactive/eai/rms/onl/transaction/apim/ApiInterfaceService.java
index c3c521a..4fecc3f 100644
--- a/src/main/java/com/eactive/eai/rms/onl/transaction/apim/ApiInterfaceService.java
+++ b/src/main/java/com/eactive/eai/rms/onl/transaction/apim/ApiInterfaceService.java
@@ -1180,17 +1180,54 @@ public class ApiInterfaceService extends OnlBaseService {
         apiInterfaceUI.setInboundRestPath(newInboundRestPath);
 
         if ("Y".equals(apiInterfaceUI.getTransformYn())) {
-            apiInterfaceUI.setInboundRequestLayout(changeToTargetLayoutUI(layoutManService.getLayoutUiToExport(apiInterfaceUI.getInboundRequestLayout()), newBizCd, newApiInterfaceId));
-            apiInterfaceUI.setOutboundRequestLayout(changeToTargetLayoutUI(layoutManService.getLayoutUiToExport(apiInterfaceUI.getOutboundRequestLayout()), newBizCd, newApiInterfaceId));
-            apiInterfaceUI.setOutboundResponseLayout(changeToTargetLayoutUI(layoutManService.getLayoutUiToExport(apiInterfaceUI.getOutboundResponseLayout()), newBizCd, newApiInterfaceId));
-            apiInterfaceUI.setInboundResponseLayout(changeToTargetLayoutUI(layoutManService.getLayoutUiToExport(apiInterfaceUI.getInboundResponseLayout()), newBizCd, newApiInterfaceId));
-
-            apiInterfaceUI.setRequestTransform(changeToTargetTransformUI(transform2Service.getTransformUiToExport(apiInterfaceUI.getRequestTransform()), newBizCd, newApiInterfaceId, apiInterfaceUI.getInboundRequestLayout(), apiInterfaceUI.getOutboundRequestLayout()));
-            apiInterfaceUI.setResponseTransform(changeToTargetTransformUI(transform2Service.getTransformUiToExport(apiInterfaceUI.getResponseTransform()), newBizCd, newApiInterfaceId, apiInterfaceUI.getOutboundResponseLayout(), apiInterfaceUI.getInboundResponseLayout()));
+        	
+        	String newInReq  = processLayoutIfExist(apiInterfaceUI.getInboundRequestLayout(),  newBizCd, newApiInterfaceId);
+        	String newOutReq = processLayoutIfExist(apiInterfaceUI.getOutboundRequestLayout(), newBizCd, newApiInterfaceId);
+        	String newOutRes = processLayoutIfExist(apiInterfaceUI.getOutboundResponseLayout(), newBizCd, newApiInterfaceId);
+        	String newInRes  = processLayoutIfExist(apiInterfaceUI.getInboundResponseLayout(),  newBizCd, newApiInterfaceId);
+        	
+        	apiInterfaceUI.setInboundRequestLayout(newInReq);
+            apiInterfaceUI.setOutboundRequestLayout(newOutReq);
+            apiInterfaceUI.setOutboundResponseLayout(newOutRes);
+            apiInterfaceUI.setInboundResponseLayout(newInRes);
+            
+            if (newInReq != null && newOutReq != null) {
+	            apiInterfaceUI.setRequestTransform(
+	            		changeToTargetTransformUI(
+	            				transform2Service.getTransformUiToExport(apiInterfaceUI.getRequestTransform()), 
+	            				newBizCd, newApiInterfaceId, newInReq, newOutReq
+	            		)
+	            );
+            }
+            
+            if (newOutRes != null && newInRes != null) {
+	            apiInterfaceUI.setResponseTransform(
+	            		changeToTargetTransformUI(
+	            				transform2Service.getTransformUiToExport(apiInterfaceUI.getResponseTransform()), 
+	            				newBizCd, newApiInterfaceId, newOutRes, newInRes
+	            		)
+	            );
+            }
+            
         }
 
         importApiInterfaceUi(apiInterfaceUI, importDupliCheck);
 
         return apiInterfaceUI;
     }
+    
+    /*
+     * 복제시 레이아웃 정보가 있는 경우에만 변환 로직을 수행
+     */
+    private String processLayoutIfExist(String layoutId, String newBizCd, String newApiInterfaceId) {
+    	
+    	if (layoutId == null || layoutId.isEmpty()) {
+    		return null;
+    	}
+    	
+    	LayoutUI layoutEntity  = layoutManService.getLayoutUiToExport(layoutId);
+    	
+		return changeToTargetLayoutUI(layoutEntity, newBizCd, newApiInterfaceId);
+    	
+    }
 }