diff --git a/src/main/java/com/eactive/eai/custom/statistics/ApiStatsMonitorImpl.java b/src/main/java/com/eactive/eai/custom/statistics/ApiStatsMonitorImpl.java
index bc9fa6e..bf4064a 100644
--- a/src/main/java/com/eactive/eai/custom/statistics/ApiStatsMonitorImpl.java
+++ b/src/main/java/com/eactive/eai/custom/statistics/ApiStatsMonitorImpl.java
@@ -39,7 +39,7 @@ public class ApiStatsMonitorImpl implements StatisticsMonitor {
 			String outboundAdapter = extractOutboundAdapter(requestEaiMessage);
 			long responseTimeMs = extractResponseTime(requestEaiMessage);
 			boolean success = extractSuccess(requestEaiMessage);
-			TransactionEvent.ErrorType errorType = extractErrorType(requestEaiMessage);
+			TransactionEvent.ErrorType errorType = extractErrorType(requestEaiMessage, success);
 
 			// TransactionEvent 생성
 			TransactionEvent event = TransactionEvent.builder().apiName(apiName).gwInstanceId(gwInstanceId)
@@ -127,26 +127,30 @@ public class ApiStatsMonitorImpl implements StatisticsMonitor {
 	 * 성공 여부 추출
 	 */
 	private boolean extractSuccess(EAIMessage msg) {
+		// logPssSno가 900이면 에러로 처리
+		if (msg.getLogPssSno() == 900) {
+			return false;
+		}
 		return msg.getStatErrorCode() == 0;
 	}
 
 	/**
 	 * 에러 유형 추출
 	 */
-	private TransactionEvent.ErrorType extractErrorType(EAIMessage msg) {
+	private TransactionEvent.ErrorType extractErrorType(EAIMessage msg, boolean success) {
 		int errorCode = msg.getStatErrorCode();
 
 		switch (errorCode) {
 		case 0:
-			return null; // 정상
+			return success ? null : TransactionEvent.ErrorType.SYSTEM_ERROR;
+		case 1:
+			return TransactionEvent.ErrorType.BUSINESS_ERROR;
 		case 2:
 			return TransactionEvent.ErrorType.TIMEOUT;
 		case 3:
 			return TransactionEvent.ErrorType.SYSTEM_ERROR;
-		case 1:
-			return TransactionEvent.ErrorType.BUSINESS_ERROR;
 		default:
-			return null;
+			return success ? null : TransactionEvent.ErrorType.SYSTEM_ERROR;
 		}
 	}
 }