diff --git a/analytics-service/src/main/java/com/kt/event/analytics/service/AnalyticsService.java b/analytics-service/src/main/java/com/kt/event/analytics/service/AnalyticsService.java
index 83ea020..79ae326 100644
--- a/analytics-service/src/main/java/com/kt/event/analytics/service/AnalyticsService.java
+++ b/analytics-service/src/main/java/com/kt/event/analytics/service/AnalyticsService.java
@@ -80,7 +80,11 @@ public class AnalyticsService {
         List<ChannelStats> channelStatsList = channelStatsRepository.findByEventId(eventId);
 
         // 2. 외부 채널 API 병렬 호출 (Circuit Breaker 적용)
-        externalChannelService.updateChannelStatsFromExternalAPIs(eventId, channelStatsList);
+        // TODO: refresh가 true일 때만 외부 API 호출하도록 개선 필요
+        // 현재는 샘플 데이터 사용을 위해 주석 처리
+        // if (refresh) {
+        //     externalChannelService.updateChannelStatsFromExternalAPIs(eventId, channelStatsList);
+        // }
 
         // 3. 대시보드 데이터 구성
         AnalyticsDashboardResponse response = buildDashboardData(eventStats, channelStatsList, startDate, endDate);