diff --git a/src/main/java/com/eactive/eai/adapter/http/dynamic/impl/HttpAdapterServiceStandard.java b/src/main/java/com/eactive/eai/adapter/http/dynamic/impl/HttpAdapterServiceStandard.java
index 78b3ba5..002999f 100644
--- a/src/main/java/com/eactive/eai/adapter/http/dynamic/impl/HttpAdapterServiceStandard.java
+++ b/src/main/java/com/eactive/eai/adapter/http/dynamic/impl/HttpAdapterServiceStandard.java
@@ -198,12 +198,15 @@ public class HttpAdapterServiceStandard extends HttpAdapterServiceSupport
             		}
             	}
             	
-				if (result == null) {
+				if ( result == null) {
 					responseData = ElinkConfig.getAsyncDummyDataForAdapterGroup(adptGrpName);
 				} else if (result instanceof byte[]) {
 					responseData = new String((byte[]) result, encode);
 				} else if (result instanceof String) {
 					responseData = (String) result;
+					if ( StringUtils.isBlank( responseData ) ) {
+						responseData = ElinkConfig.getAsyncDummyDataForAdapterGroup(adptGrpName, adptName);
+					}
 				}
             	
                 response.setCharacterEncoding(encode);
diff --git a/src/main/java/com/eactive/eai/env/ElinkConfig.java b/src/main/java/com/eactive/eai/env/ElinkConfig.java
index b3024f4..9346065 100644
--- a/src/main/java/com/eactive/eai/env/ElinkConfig.java
+++ b/src/main/java/com/eactive/eai/env/ElinkConfig.java
@@ -1,11 +1,14 @@
 package com.eactive.eai.env;
 
 import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Properties;
 import java.util.concurrent.ConcurrentHashMap;
 
 import javax.annotation.PostConstruct;
 
+import org.json.simple.JSONObject;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
@@ -13,6 +16,8 @@ import org.springframework.stereotype.Component;
 
 import com.eactive.eai.adapter.AdapterGroupVO;
 import com.eactive.eai.adapter.AdapterManager;
+import com.eactive.eai.adapter.AdapterPropManager;
+import com.eactive.eai.adapter.AdapterVO;
 import com.eactive.eai.common.dao.DAOException;
 import com.eactive.eai.common.util.ContainerUtil;
 
@@ -297,6 +302,47 @@ public class ElinkConfig implements ConfigKeys {
 		}
 		return getAsyncDummyData(adptrMsgPtrnCd);
 	}
+	
+	public static String getAsyncDummyDataForAdapterGroup(String adapterGroupName, String adapterName) {
+
+		Properties httpProp = null;
+		try {
+
+			
+			AdapterVO adapterVO = AdapterManager.getInstance().getAdapterVO(adapterGroupName, adapterName);
+			
+			httpProp = AdapterPropManager.getInstance().getProperties(adapterVO.getPropGroupName());
+		} catch (Exception e) {
+			return makeResponseBodyMsg();
+		}
+		
+		String asyncMsgStyle =  httpProp.getProperty("ASYNC_RTNMSG_TYPE", "").toUpperCase();
+    	String responseBody ="";
+    	if (asyncMsgStyle == null || asyncMsgStyle.trim().isEmpty()) {
+    		responseBody = makeResponseBodyMsg();
+    	} else {
+        	responseBody = asyncMsgStyle;	
+    	} 
+		
+    	return responseBody;
+	}
+	
+	static private String makeResponseBodyMsg() {
+    	
+    	Map<String, Object> dataMap = new HashMap<>();
+    	dataMap.put("result", 1);
+		Map<String, Object> map = new HashMap<>();
+		
+		map.put("code", "200");
+        map.put("data", dataMap);
+        map.put("message",  "정상 처리 되었습니다.");
+	  
+        JSONObject json = new JSONObject();
+        json.putAll(map);
+        
+		return json.toJSONString(); 
+    }
+
    public static String getHttpClientUrlReplaceName() {
       return httpClientUrlReplaceName;
    }