diff --git a/src/main/java/com/eactive/eai/inbound/processor/RequestProcessor.java b/src/main/java/com/eactive/eai/inbound/processor/RequestProcessor.java
index f2f06be..db60802 100644
--- a/src/main/java/com/eactive/eai/inbound/processor/RequestProcessor.java
+++ b/src/main/java/com/eactive/eai/inbound/processor/RequestProcessor.java
@@ -1365,7 +1365,10 @@ public class RequestProcessor extends RequestProcessorSupport {
 			}
 		}
 		else {
+			// 비동기 거래, S-A의 응답거래시에는 NULL을 리턴
 			return null;
+			// S-A 에서 Sync 100에 대한 ack 응답시 http header 에 traceId 에 uuid를 넣어달라고 해서..
+			//return vo.getUuid();
 		}
 	}