diff --git a/app/Services/MenuService.php b/app/Services/MenuService.php
index 809db3c9..96ebce57 100644
--- a/app/Services/MenuService.php
+++ b/app/Services/MenuService.php
@@ -1234,28 +1234,48 @@ public function createMenuForBoard(array $boardData): GlobalMenu|Menu|null
         $parentId = $this->findParentMenuForBoard($isSystem, $tenantId);
 
         if ($isSystem) {
-            // 시스템 게시판 → global_menus에 추가
+            // 시스템 게시판 → global_menus + menus 둘 다 추가
             $url = '/customer-center/'.$boardCode;
 
-            // 중복 체크
-            $exists = GlobalMenu::where('url', $url)->exists();
-            if ($exists) {
-                return null;
+            // 1. GlobalMenu에 추가
+            $globalMenu = null;
+            $globalExists = GlobalMenu::where('url', $url)->exists();
+            if (! $globalExists) {
+                $maxOrder = GlobalMenu::where('parent_id', $parentId)->max('sort_order') ?? 0;
+
+                $globalMenu = GlobalMenu::create([
+                    'parent_id' => $parentId,
+                    'name' => $boardName,
+                    'url' => $url,
+                    'icon' => 'document-text',
+                    'sort_order' => $maxOrder + 1,
+                    'is_active' => true,
+                    'hidden' => false,
+                    'is_external' => false,
+                ]);
             }
 
-            // 정렬 순서 계산
-            $maxOrder = GlobalMenu::where('parent_id', $parentId)->max('sort_order') ?? 0;
+            // 2. Menu에도 추가 (tenant_id = null로 시스템 메뉴)
+            $menuParentId = $this->findParentMenuForBoard(false, null);
+            $menuExists = Menu::where('url', $url)->whereNull('tenant_id')->exists();
+            if (! $menuExists) {
+                $maxMenuOrder = Menu::where('parent_id', $menuParentId)->whereNull('tenant_id')->max('sort_order') ?? 0;
 
-            return GlobalMenu::create([
-                'parent_id' => $parentId,
-                'name' => $boardName,
-                'url' => $url,
-                'icon' => 'document-text', // 기본 아이콘
-                'sort_order' => $maxOrder + 1,
-                'is_active' => true,
-                'hidden' => false,
-                'is_external' => false,
-            ]);
+                Menu::create([
+                    'tenant_id' => null,
+                    'parent_id' => $menuParentId,
+                    'name' => $boardName,
+                    'url' => $url,
+                    'icon' => 'document-text',
+                    'sort_order' => $maxMenuOrder + 1,
+                    'is_active' => true,
+                    'hidden' => false,
+                    'is_external' => false,
+                    'created_by' => auth()->id(),
+                ]);
+            }
+
+            return $globalMenu;
         } else {
             // 테넌트 게시판 → menus에 추가
             $url = '/boards/'.$boardCode;
@@ -1307,13 +1327,30 @@ public function deleteMenuForBoard(string $boardCode, bool $isSystem, ?int $tena
     {
         if ($isSystem) {
             $url = '/customer-center/'.$boardCode;
-            $menu = $forceDelete
+
+            // 1. GlobalMenu 삭제
+            $globalMenu = $forceDelete
                 ? GlobalMenu::withTrashed()->where('url', $url)->first()
                 : GlobalMenu::where('url', $url)->first();
 
-            if ($menu) {
-                return $forceDelete ? $menu->forceDelete() : $menu->delete();
+            if ($globalMenu) {
+                $forceDelete ? $globalMenu->forceDelete() : $globalMenu->delete();
             }
+
+            // 2. Menu도 삭제 (tenant_id = null인 시스템 메뉴)
+            $menu = $forceDelete
+                ? Menu::withTrashed()->where('url', $url)->whereNull('tenant_id')->first()
+                : Menu::where('url', $url)->whereNull('tenant_id')->first();
+
+            if ($menu) {
+                if (! $forceDelete) {
+                    $menu->deleted_by = auth()->id();
+                    $menu->save();
+                }
+                $forceDelete ? $menu->forceDelete() : $menu->delete();
+            }
+
+            return true;
         } else {
             $url = '/boards/'.$boardCode;
             $query = $forceDelete
@@ -1357,33 +1394,53 @@ public function restoreMenuForBoard(string $boardCode, string $boardName, bool $
         if ($isSystem) {
             $url = '/customer-center/'.$boardCode;
 
-            // 1. soft-deleted 메뉴 확인
-            $trashedMenu = GlobalMenu::onlyTrashed()->where('url', $url)->first();
-            if ($trashedMenu) {
-                $restored = $trashedMenu->restore();
-                if ($restored) {
-                    $trashedMenu->deleted_by = null;
-                    $trashedMenu->save();
-                }
-
-                return $restored;
+            // === GlobalMenu 처리 ===
+            $globalTrashed = GlobalMenu::onlyTrashed()->where('url', $url)->first();
+            if ($globalTrashed) {
+                $globalTrashed->restore();
+                $globalTrashed->deleted_by = null;
+                $globalTrashed->save();
+            } elseif (! GlobalMenu::where('url', $url)->exists()) {
+                // 없으면 생성
+                $parentId = $this->findParentMenuForBoard(true, null);
+                $maxOrder = GlobalMenu::where('parent_id', $parentId)->max('sort_order') ?? 0;
+                GlobalMenu::create([
+                    'parent_id' => $parentId,
+                    'name' => $boardName,
+                    'url' => $url,
+                    'icon' => 'document-text',
+                    'sort_order' => $maxOrder + 1,
+                    'is_active' => true,
+                    'hidden' => false,
+                    'is_external' => false,
+                ]);
             }
 
-            // 2. 활성 메뉴가 이미 있는지 확인
-            $activeMenu = GlobalMenu::where('url', $url)->first();
-            if ($activeMenu) {
-                return true; // 이미 존재, 아무것도 안함
+            // === Menu 처리 (tenant_id = null) ===
+            $menuTrashed = Menu::onlyTrashed()->where('url', $url)->whereNull('tenant_id')->first();
+            if ($menuTrashed) {
+                $menuTrashed->restore();
+                $menuTrashed->deleted_by = null;
+                $menuTrashed->save();
+            } elseif (! Menu::where('url', $url)->whereNull('tenant_id')->exists()) {
+                // 없으면 생성
+                $menuParentId = $this->findParentMenuForBoard(false, null);
+                $maxMenuOrder = Menu::where('parent_id', $menuParentId)->whereNull('tenant_id')->max('sort_order') ?? 0;
+                Menu::create([
+                    'tenant_id' => null,
+                    'parent_id' => $menuParentId,
+                    'name' => $boardName,
+                    'url' => $url,
+                    'icon' => 'document-text',
+                    'sort_order' => $maxMenuOrder + 1,
+                    'is_active' => true,
+                    'hidden' => false,
+                    'is_external' => false,
+                    'created_by' => auth()->id(),
+                ]);
             }
 
-            // 3. 둘 다 없으면 새로 생성
-            $created = $this->createMenuForBoard([
-                'board_code' => $boardCode,
-                'name' => $boardName,
-                'is_system' => true,
-                'tenant_id' => null,
-            ]);
-
-            return $created !== null;
+            return true;
         } else {
             $url = '/boards/'.$boardCode;