diff --git a/frontend/app/(main)/admin/batch-management-new/page.tsx b/frontend/app/(main)/admin/batch-management-new/page.tsx
index 05ba7283..9fd74706 100644
--- a/frontend/app/(main)/admin/batch-management-new/page.tsx
+++ b/frontend/app/(main)/admin/batch-management-new/page.tsx
@@ -1145,6 +1145,9 @@ export default function BatchManagementNewPage(props: BatchManagementNewPageProp
               : ("direct" as const);
         return {
           from_connection_type: "restapi" as const,
+          // 등록된 외부 REST API 연결을 선택했으면 그 id 를 함께 저장 → 로드 시 셀렉트 복원
+          from_connection_id:
+            selectedRestApiId !== "manual" ? Number(selectedRestApiId) : undefined,
           from_table_name: fromEndpoint,
           from_column_name: fromColumnName,
           from_api_url: fromApiUrl,
diff --git a/frontend/app/(main)/admin/userMng/userAuthList/page.tsx b/frontend/app/(main)/admin/userMng/userAuthList/page.tsx
index e7777214..e3f48790 100644
--- a/frontend/app/(main)/admin/userMng/userAuthList/page.tsx
+++ b/frontend/app/(main)/admin/userMng/userAuthList/page.tsx
@@ -659,7 +659,9 @@ export default function UserAuthPage() {
                         )}
                       >
                         <div className="flex items-start justify-between gap-2">
-                          <div className="min-w-0 flex-1">
+                          {/* authCode 는 내부 식별자만 — 화면에는 라벨(authName) 만 노출.
+                              hover/title 로 코드값은 개발자가 확인 가능. */}
+                          <div className="min-w-0 flex-1" title={role.authCode}>
                             <div
                               className={cn(
                                 "truncate text-sm font-semibold",
@@ -668,9 +670,6 @@ export default function UserAuthPage() {
                             >
                               {role.authName}
                             </div>
-                            <div className="text-muted-foreground mt-0.5 truncate font-mono text-[10px]">
-                              {role.authCode}
-                            </div>
                           </div>
                           <div
                             className={cn(
diff --git a/frontend/lib/api/batch.ts b/frontend/lib/api/batch.ts
index 2398df79..b151c05e 100644
--- a/frontend/lib/api/batch.ts
+++ b/frontend/lib/api/batch.ts
@@ -424,6 +424,8 @@ export class BatchAPI {
     };
   }> {
     try {
+      // 배치 실행은 외부 API + 대량 INSERT/UPDATE 가 동기적으로 일어나 30초 이상 걸릴 수 있음.
+      // apiClient 기본 timeout(30s) 으로는 자주 끊겨 이 호출만 5분으로 override.
       const response = await apiClient.post<{
         success: boolean;
         message?: string;
@@ -434,7 +436,9 @@ export class BatchAPI {
           failedRecords: number;
           duration: number;
         };
-      }>(`/batch-management/batch-configs/${batchId}/execute`);
+      }>(`/batch-management/batch-configs/${batchId}/execute`, undefined, {
+        timeout: 300000, // 5분
+      });
 
       return response.data;
     } catch (error) {