diff --git a/app/Request/UserRequest.php b/app/Request/UserRequest.php
index 984ef5c..b8cd5c9 100644
--- a/app/Request/UserRequest.php
+++ b/app/Request/UserRequest.php
@@ -64,7 +64,7 @@ class UserRequest extends FormRequest
             'consignee_name' => 'required',
             'consignee_tel' => 'required',
             'is_default' => ['required','numeric','min:0','max:1'],
-            'tag' => ['required','numeric','min:1','max:3'],
+            'tag' => ['sometimes','required','numeric','min:1','max:4'],
         ];
     }
 
diff --git a/app/Services/UserService.php b/app/Services/UserService.php
index d3c8e3f..cc45c90 100644
--- a/app/Services/UserService.php
+++ b/app/Services/UserService.php
@@ -367,7 +367,7 @@ class UserService extends BaseService
             $data['consignee_tel'] = $request_params['consignee_tel'];
             $data['consignee_tel_mask'] = Mask::maskPhoneStr($request_params['consignee_tel']);
             $data['is_default'] = $request_params['is_default'];
-            $data['tag'] = $request_params['tag'];
+            $data['tag'] = $request_params['tag'] ?? "";
             $user_ship_address = UserShipAddress::addUserShipAddress($data);
             if (empty($user_ship_address)) {
                 Db::rollBack();