diff --git a/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogRepositoryImpl.java b/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogRepositoryImpl.java
index 417cb65..d1f4d31 100644
--- a/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogRepositoryImpl.java
+++ b/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogRepositoryImpl.java
@@ -102,9 +102,15 @@ public class EAILogRepositoryImpl implements EAILogRepository {
 		}
 
 		if (StringUtils.isNotBlank(eaiLogSearch.getSearchGuid())) {
-			query
-					.where(qeaiLog.pguid.eq(eaiLogSearch.getSearchGuid()))
-					.where(qeaiLog.id.logprcssserno.eq(eaiLogSearch.getSearchLogPrcssSerno()));
+			query.where(qeaiLog.pguid.eq(eaiLogSearch.getSearchGuid()));
+
+			// 처리단계(logprcssserno)를 명시적으로 선택한 경우에만 추가로 좁힌다.
+			// 하나의 GUID는 처리단계(100/200/300/400)별로 여러 로그 행에 걸쳐 존재하므로,
+			// 선택하지 않았으면 해당 GUID의 모든 단계를 조회한다.
+			if (StringUtils.isNotBlank(eaiLogSearch.getSearchLogPrcssSerno())) {
+				query.where(qeaiLog.id.logprcssserno.eq(eaiLogSearch.getSearchLogPrcssSerno()));
+			}
+
 			return;
 		}
 
diff --git a/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogServiceImpl.java b/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogServiceImpl.java
index 0ce13ca..d27e031 100644
--- a/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogServiceImpl.java
+++ b/src/main/java/com/eactive/eai/rms/data/entity/onl/logger/EAILogServiceImpl.java
@@ -13,6 +13,7 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import com.eactive.eai.common.util.UUIDGenerator;
 import com.eactive.eai.data.RollingTable;
 import com.eactive.eai.data.entity.onl.logger.EAILog;
 import com.eactive.eai.data.entity.onl.logger.EAILogId;
@@ -38,19 +39,36 @@ public class EAILogServiceImpl implements EAILogService {
 
 	@Override
 	public Page<EAILogDto> findAll(Pageable pageable, EAILogSearch eaiLogSearch) {
-		long time = CommonUtil.getCalendar(eaiLogSearch.getSearchStartTime()).getTimeInMillis();
+		long time = CommonUtil.getCalendar(resolveTableDate(eaiLogSearch)).getTimeInMillis();
 		EAILog eaiLog = (EAILog) applicationContext.getBean(RollingTable.class, EAILog.class, time);
 		Page<EAILogDto> eaiLogDtos = eaiLogRepository.findAll(eaiLog.getClass(), pageable, eaiLogSearch);
 		return eaiLogDtos;
 	}
 
 	public Map<String, Long> getTransactionCounts(EAILogSearch eaiLogSearch) {
-		long time = CommonUtil.getCalendar(eaiLogSearch.getSearchStartTime()).getTimeInMillis();
+		long time = CommonUtil.getCalendar(resolveTableDate(eaiLogSearch)).getTimeInMillis();
 		EAILog eaiLog = (EAILog) applicationContext.getBean(RollingTable.class, EAILog.class, time);
 		Map<String, Long> detailedCounts = eaiLogRepository.countDetailedTransactions(eaiLog.getClass(), eaiLogSearch);
 		return detailedCounts;
 	}
 
+	// GUID로 조회하는 경우, 대상 롤링 테이블을 검색시간이 아닌 GUID 자체에 포함된 시각으로 특정한다.
+	// GUID 포맷/오프셋은 UUIDGenerator.GUID_DATE_POSITION 기준.
+	private String resolveTableDate(EAILogSearch eaiLogSearch) {
+		String guid = eaiLogSearch.getSearchGuid();
+
+		if (StringUtils.isNotBlank(guid)) {
+			int start = UUIDGenerator.GUID_DATE_POSITION;
+			int end = start + 14; // yyyyMMddHHmmss
+
+			if (guid.length() >= end) {
+				return guid.substring(start, end);
+			}
+		}
+
+		return eaiLogSearch.getSearchStartTime();
+	}
+
 	@Override
 	public EAILogDto getById(EAILogId eaiLogId) {
 		long time = CommonUtil.getCalendar(eaiLogId.getMsgdpstyms()).getTimeInMillis();