diff --git a/src/main/java/com/eactive/eai/common/util/Logger.java b/src/main/java/com/eactive/eai/common/util/Logger.java
index 40b36d1..06e811e 100644
--- a/src/main/java/com/eactive/eai/common/util/Logger.java
+++ b/src/main/java/com/eactive/eai/common/util/Logger.java
@@ -907,6 +907,41 @@ public class Logger  implements LogKeys {
 		        	System.out.println("@ add FileAppender to "+hc5Logger.getName()+" - "+appender.getName());
 		        }
 	        }
+	        
+			// * 거래 파일 로그 추가 코드
+			// MDC txId가 있을 때만 SiftingAppender로 기록하는 필터
+			// (txId 없는 일반 로그가 default.log로 쌓이는 것 방지)
+			ch.qos.logback.core.filter.Filter<ILoggingEvent> txIdFilter = new ch.qos.logback.core.filter.AbstractMatcherFilter<ILoggingEvent>() {
+				@Override
+				public ch.qos.logback.core.spi.FilterReply decide(ILoggingEvent event) {
+					String txId = event.getMDCPropertyMap().get(DISCRIMINATOR);
+					if (org.apache.commons.lang3.StringUtils.isNotBlank(txId) && !"default".equals(txId)) {
+						return ch.qos.logback.core.spi.FilterReply.ACCEPT;
+					}
+					return ch.qos.logback.core.spi.FilterReply.DENY;
+				}
+			};
+			txIdFilter.start();
+			siftAppender.addFilter(txIdFilter);
+
+			// SIFT appender를 추가할 대상 로거 목록
+			// → ESBFW, ADAPTER, DEFAULT 등 거래 처리에 관여하는 로거 추가
+			String[] siftTargetLoggers = { LOGGER_ESBFW, LOGGER_ADAPTER, LOGGER_DEFAULT
+					// 필요 시 LOGGER_TRAN, LOGGER_NET 등 추가
+			};
+
+			for (String targetLoggerName : siftTargetLoggers) {
+				ch.qos.logback.classic.Logger targetLogger = (ch.qos.logback.classic.Logger) LoggerFactory
+						.getLogger(targetLoggerName);
+
+				if (targetLogger == null)
+					continue;
+
+				// siftAppender 추가 (기존 appender는 그대로 유지 - additive 건드리지 않음)
+				targetLogger.addAppender(siftAppender);
+				System.out.println("@ add SiftAppender to " + targetLogger.getName() + " - " + siftAppender.getName());
+			}
+
         	
 	    } catch(Exception e) {
 	        System.err.println("@@ Logger Configure Error.===================");
@@ -939,7 +974,7 @@ public class Logger  implements LogKeys {
 	        }
 
 	        asisLevel = logger.getLevel();	        
-	        if ( asisLevel.toInt() != toLevel.toInt() ) {
+	        if ( toLevel == null || asisLevel.toInt() != toLevel.toInt() ) {
 	        	logger.setLevel( toLevel );
 		        System.out.println("@@ Logger setLoggerLevel | " + loggerName 
 		        					+ " AS-IS [" + asisLevel.toString() + "] TO [" + toLevel.toString() + "]");