diff --git a/troubleshooting/250831_happybell80_skill-email_UUID_inconsistency_URGENT.md b/troubleshooting/250831_happybell80_skill-email_UUID_inconsistency_URGENT.md
index efe1156..5931af0 100644
--- a/troubleshooting/250831_happybell80_skill-email_UUID_inconsistency_URGENT.md
+++ b/troubleshooting/250831_happybell80_skill-email_UUID_inconsistency_URGENT.md
@@ -32,6 +32,7 @@ skill-email DB 조회: Slack ID로 저장됨 (U0925SXQFDK)
 rb8001의 email_integration.py 수정:
 - 이메일 조회 시: UUID → Slack ID 역변환
 - slack_user_mapping 테이블 활용
+- **참고: auth-server는 user.oauth_id에 slack_id 저장 중 (별도 slack_id 컬럼 없음)**
 
 ### 장기 해결 (권장)
 **모든 내부 시스템 UUID Primary Key 통일**:
diff --git a/troubleshooting/250831_rb8001_postgresql_context_integration.md b/troubleshooting/250831_rb8001_postgresql_context_integration.md
index 5b7c151..31ec628 100644
--- a/troubleshooting/250831_rb8001_postgresql_context_integration.md
+++ b/troubleshooting/250831_rb8001_postgresql_context_integration.md
@@ -67,5 +67,5 @@
 
 ### 데이터베이스 스키마
 - `conversation_logs.user_id`: UUID (Frontend 사용자)
-- `conversation_logs.slack_user_id`: VARCHAR (Slack ID 보존)
+- `conversation_logs.slack_user_id`: VARCHAR (Slack ID 보존) - **주의: 문서상 언급이나 실제 코드에서 미사용**
 - `slack_user_mapping`: Slack ID ↔ UUID 매핑 테이블 활용
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