diff --git a/tkeg/api/app/routers/dashboard.py b/tkeg/api/app/routers/dashboard.py
index 90592cb..5acc5e1 100644
--- a/tkeg/api/app/routers/dashboard.py
+++ b/tkeg/api/app/routers/dashboard.py
@@ -523,9 +523,21 @@ async def update_project_name(
         }).fetchone()
         
         db.commit()
-        
-        # TODO: 활동 로그 기록 (추후 구현)
-        
+
+        # 활동 로그 기록
+        try:
+            activity_logger = ActivityLogger(db)
+            activity_logger.log_activity(
+                username=current_user.get("username", "unknown"),
+                activity_type="project_update",
+                activity_description=f"프로젝트 이름 수정: {result.project_name} → {job_name}",
+                target_id=str(project_id),
+                target_type="project",
+                user_id=current_user.get("user_id")
+            )
+        except Exception as e:
+            logger.warning(f"활동 로그 기록 실패: {e}")
+
         return {
             "success": True,
             "message": "프로젝트 이름이 수정되었습니다",
diff --git a/tkeg/api/app/routers/material_comparison.py b/tkeg/api/app/routers/material_comparison.py
index 4a5608e..d67d127 100644
--- a/tkeg/api/app/routers/material_comparison.py
+++ b/tkeg/api/app/routers/material_comparison.py
@@ -52,14 +52,16 @@ async def compare_material_revisions(
             db, current_file, previous_file, job_no
         )
         
-        # 4. 결과 저장 (선택사항) - 임시로 비활성화
+        # 4. 결과 저장
         comparison_id = None
-        # TODO: 저장 기능 활성화
-        # if save_result and previous_file and previous_revision:
-        #     comparison_id = await save_comparison_result(
-        #         db, job_no, current_revision, previous_revision,
-        #         current_file["id"], previous_file["id"], comparison_result
-        #     )
+        if save_result and previous_file and previous_revision:
+            try:
+                comparison_id = await save_comparison_result(
+                    db, job_no, current_revision, previous_revision,
+                    current_file["id"], previous_file["id"], comparison_result
+                )
+            except Exception as e:
+                logger.warning(f"비교 결과 저장 실패 (비교 자체는 성공): {e}")
         
         return {
             "success": True,