diff --git a/app/Controllers/Admin/SearchController.php b/app/Controllers/Admin/SearchController.php
index 376cc2b..9cf5c25 100644
--- a/app/Controllers/Admin/SearchController.php
+++ b/app/Controllers/Admin/SearchController.php
@@ -2,7 +2,6 @@
 
 namespace App\Controllers\Admin;
 
-use App\Entities\Customer\ServiceEntity;
 use CodeIgniter\HTTP\RequestInterface;
 use CodeIgniter\HTTP\ResponseInterface;
 use Psr\Log\LoggerInterface;
@@ -33,6 +32,9 @@ class SearchController extends AdminController
         foreach ($rows as $row) {
             $uids[] = "'{$row->serviceinfo_uid}'";
         }
+        if (count($uids) === 0) {
+            return $entities;
+        }
         //서비스별 서버리스트
         // $childServers = [];
         foreach ($this->service->getEntities([sprintf("uid IN (%s)", implode(",", $uids)) => null]) as $entity) {
diff --git a/app/DTOs/CommonDTO.php b/app/DTOs/CommonDTO.php
index 48745da..2b16cd4 100644
--- a/app/DTOs/CommonDTO.php
+++ b/app/DTOs/CommonDTO.php
@@ -9,64 +9,61 @@ abstract class CommonDTO
 {
   protected function __construct(array $datas = [])
   {
-    if (empty($datas)) return;
+    if (empty($datas))
+      return;
 
     $reflection = new ReflectionClass($this);
 
     foreach ($datas as $key => $value) {
-      if (!$reflection->hasProperty($key)) continue;
+      if (!$reflection->hasProperty($key))
+        continue;
 
       $property = $reflection->getProperty($key);
       $type = $property->getType();
       $assignValue = $value;
 
-      // 1. 빈 문자열('') 처리 로직 개선
+      // *_uid 규칙 처리
+      if ($value === '' && preg_match('/_uid$/', $key)) {
+        if ($type instanceof ReflectionNamedType && $type->allowsNull()) {
+          $this->{$key} = null;
+          continue;
+        }
+      }
+
+      // 1) 기존: 빈 문자열('') 처리
       if ($value === '') {
-        // 프로퍼티가 null을 허용하는 경우에만 null 할당
         if ($type instanceof ReflectionNamedType && $type->allowsNull()) {
           $assignValue = null;
         } else {
-          // null을 허용하지 않는 경우, 타입별 기본값 지정
           $typeName = ($type instanceof ReflectionNamedType) ? $type->getName() : '';
           $assignValue = ($typeName === 'int' || $typeName === 'float') ? 0 : '';
         }
       }
-      // 2. 값이 존재할 때의 타입별 캐스팅 로직
+      // 2) 기존: 타입별 캐스팅
       elseif ($type instanceof ReflectionNamedType) {
         $typeName = $type->getName();
 
-        // 타입이 array이고 입력값이 문자열인 경우 (CSV -> Array)
         if ($typeName === 'array' && is_string($value)) {
           $assignValue = explode(DEFAULTS["DELIMITER_ROLE"], $value);
-        }
-        // 타입이 int이고 입력값이 숫자형인 경우
-        elseif ($typeName === 'int' && is_numeric($value)) {
+        } elseif ($typeName === 'int' && is_numeric($value)) {
           $assignValue = (int) $value;
-        }
-        // 타입이 float이고 입력값이 숫자형인 경우
-        elseif ($typeName === 'float' && is_numeric($value)) {
+        } elseif ($typeName === 'float' && is_numeric($value)) {
           $assignValue = (float) $value;
         }
       }
 
-      // 최종 값 할당
       $this->{$key} = $assignValue;
     }
   }
 
-  // [중요] final 해제 또는 로직 변경
   public function toArray(): array
   {
-    // get_object_vars는 protected를 가져오지 못하므로 
-    // Reflection을 사용하여 모든 프로퍼티를 가져오되, 
-    // 값을 가져올 때는 $this->{$name}을 통해 Getter나 매직메서드가 작동하게 합니다.
     $reflection = new ReflectionClass($this);
     $properties = $reflection->getProperties();
     $result = [];
 
     foreach ($properties as $property) {
       $name = $property->getName();
-      // $this->$name 처리를 통해 자식의 __get()이 호출되도록 유도
       $result[$name] = $this->{$name};
     }
 
diff --git a/app/DTOs/Customer/Wallet/AccountDTO.php b/app/DTOs/Customer/Wallet/AccountDTO.php
index d2558c7..b60ba3e 100644
--- a/app/DTOs/Customer/Wallet/AccountDTO.php
+++ b/app/DTOs/Customer/Wallet/AccountDTO.php
@@ -4,6 +4,8 @@ namespace App\DTOs\Customer\Wallet;
 
 class AccountDTO extends WalletDTO
 {
+  public ?int $user_uid = null;
+  public ?int $clientinfo_uid = null;
   public string $bank = '';
   public string $alias = '';
   public string $issue_at = '';
diff --git a/app/DTOs/Customer/Wallet/CouponDTO.php b/app/DTOs/Customer/Wallet/CouponDTO.php
index 944f8e5..9ec3578 100644
--- a/app/DTOs/Customer/Wallet/CouponDTO.php
+++ b/app/DTOs/Customer/Wallet/CouponDTO.php
@@ -4,6 +4,9 @@ namespace App\DTOs\Customer\Wallet;
 
 class CouponDTO extends WalletDTO
 {
+  public ?int $user_uid = null;
+  public ?int $clientinfo_uid = null;
+
   public function __construct(array $datas = [])
   {
     parent::__construct($datas);
diff --git a/app/DTOs/Customer/Wallet/PointDTO.php b/app/DTOs/Customer/Wallet/PointDTO.php
index 0e0fcc4..0c487d1 100644
--- a/app/DTOs/Customer/Wallet/PointDTO.php
+++ b/app/DTOs/Customer/Wallet/PointDTO.php
@@ -4,6 +4,9 @@ namespace App\DTOs\Customer\Wallet;
 
 class PointDTO extends WalletDTO
 {
+  public ?int $user_uid = null;
+  public ?int $clientinfo_uid = null;
+
   public function __construct(array $datas = [])
   {
     parent::__construct($datas);
diff --git a/app/DTOs/Equipment/CHASSISDTO.php b/app/DTOs/Equipment/CHASSISDTO.php
index 9568c41..ccd3223 100644
--- a/app/DTOs/Equipment/CHASSISDTO.php
+++ b/app/DTOs/Equipment/CHASSISDTO.php
@@ -12,11 +12,11 @@ class CHASSISDTO extends CommonDTO
   public int $used = 0;
   public int $stock = 0;
   public string $status = '';
-  public int $cpuinfo_uid = 0;
+  public ?int $cpuinfo_uid = null;
   public int $cpu_cnt = 0;
-  public int $raminfo_uid = 0;
+  public ?int $raminfo_uid = null;
   public int $ram_cnt = 0;
-  public int $diskinfo_uid = 0;
+  public ?int $diskinfo_uid = null;
   public int $disk_cnt = 0;
 
   public function __construct(array $datas = [])
diff --git a/app/DTOs/Equipment/ServerDTO.php b/app/DTOs/Equipment/ServerDTO.php
index 828674b..a3fa5ea 100644
--- a/app/DTOs/Equipment/ServerDTO.php
+++ b/app/DTOs/Equipment/ServerDTO.php
@@ -7,6 +7,9 @@ use App\DTOs\CommonDTO;
 class ServerDTO extends CommonDTO
 {
   public ?int $uid = null;
+  public ?int $user_uid = null;
+  public ?int $clientinfo_uid = null;
+  public ?int $serviceinfo_uid = null;
   public ?int $chassisinfo_uid = null;
   public ?int $switchinfo_uid = null;
   public string $code = '';
diff --git a/app/DTOs/Equipment/ServerPartDTO.php b/app/DTOs/Equipment/ServerPartDTO.php
index 7c926f3..2f9efca 100644
--- a/app/DTOs/Equipment/ServerPartDTO.php
+++ b/app/DTOs/Equipment/ServerPartDTO.php
@@ -7,10 +7,10 @@ use App\DTOs\CommonDTO;
 class ServerPartDTO extends CommonDTO
 {
   public ?int $uid = null;
-  public ?string $clientinfo_uid = null;
-  public ?string $serviceinfo_uid = null;
-  public ?string $serverinfo_uid = null;
+  public ?int $clientinfo_uid = null;
   public ?int $part_uid = null;
+  public ?int $serviceinfo_uid = null;
+  public ?int $serverinfo_uid = null;
   public string $title = '';
   public string $type = '';
   public string $billing = '';
diff --git a/app/Entities/Customer/ClientEntity.php b/app/Entities/Customer/ClientEntity.php
index 35ec97e..b61e74d 100644
--- a/app/Entities/Customer/ClientEntity.php
+++ b/app/Entities/Customer/ClientEntity.php
@@ -113,6 +113,7 @@ class ClientEntity extends CustomerEntity
         $cleanedRoles = array_map(fn($item) => trim((string) ($item ?? ''), " \t\n\r\0\x0B\""), $roleArray);
         $roleArray = array_filter($cleanedRoles);
         // 최종적으로 DB에 삽입될 단일 CSV 문자열로 변환하여 저장합니다.
-        $this->role = implode(DEFAULTS["DELIMITER_ROLE"], $roleArray);
+        // ✅ setter함수는 반드시 attributes에 저장
+        $this->attributes['role'] = implode(DEFAULTS["DELIMITER_ROLE"], $roleArray);
     }
 }
diff --git a/app/Entities/Equipment/ServerPartEntity.php b/app/Entities/Equipment/ServerPartEntity.php
index 1d57509..536a0b9 100644
--- a/app/Entities/Equipment/ServerPartEntity.php
+++ b/app/Entities/Equipment/ServerPartEntity.php
@@ -9,13 +9,6 @@ class ServerPartEntity extends EquipmentEntity
     const PK = ServerPartModel::PK;
     const TITLE = ServerPartModel::TITLE;
 
-    protected $casts = [
-        'clientinfo_uid' => '?integer',
-        'part_uid' => '?integer',
-        'serverinfo_uid' => 'integer',
-        'serviceinfo_uid' => '?integer',
-    ];
-
     protected $attributes = [
         'clientinfo_uid' => null,
         'part_uid' => null,
diff --git a/app/Entities/UserEntity.php b/app/Entities/UserEntity.php
index 1db7d24..84e98f0 100644
--- a/app/Entities/UserEntity.php
+++ b/app/Entities/UserEntity.php
@@ -70,7 +70,8 @@ class UserEntity extends CommonEntity
     {
         // 입력된 비밀번호가 null이 아니고 비어있지 않을 때만 해시 처리
         if (!empty($password)) {
-            $this->passwd = password_hash($password, PASSWORD_BCRYPT);
+            // ✅ setter함수는 반드시 attributes에 저장
+            $this->attributes['passwd'] = password_hash($password, PASSWORD_BCRYPT);
         }
     }
 
@@ -99,6 +100,7 @@ class UserEntity extends CommonEntity
         $cleanedRoles = array_map(fn($item) => trim((string) ($item ?? ''), " \t\n\r\0\x0B\""), $roleArray);
         $roleArray = array_filter($cleanedRoles);
         // 최종적으로 DB에 삽입될 단일 CSV 문자열로 변환하여 저장합니다.
-        $this->role = implode(DEFAULTS["DELIMITER_ROLE"], $roleArray);
+        // ✅ setter함수는 반드시 attributes에 저장
+        $this->attributes['role'] = implode(DEFAULTS["DELIMITER_ROLE"], $roleArray);
     }
 }
diff --git a/app/Services/CommonService.php b/app/Services/CommonService.php
index 1886f51..3f73842 100644
--- a/app/Services/CommonService.php
+++ b/app/Services/CommonService.php
@@ -235,15 +235,19 @@ abstract class CommonService
 
     protected function save_process(CommonEntity $entity): CommonEntity
     {
-        // INSERT 시 Entity의 PK는 0 또는 NULL이어야 함 (DB가 ID를 생성하도록)
-        $initialPK = $entity->getPK();
-        log_message('debug', __FUNCTION__ . ":" . var_export($entity, true));
-        $result = $this->model->save($entity);
-        log_message('debug', __FUNCTION__ . ":" . $this->model->getLastQuery());
-        // 최종적으로 DB에 반영된 PK를 반환받습니다. (UPDATE이면 기존 PK, INSERT이면 새 PK)
-        $entity->{$this->getPKField()} = $this->handle_save_result($result, $initialPK);
-        // handle_save_result에서 확인된 최종 PK를 사용하여 DB에서 최신 엔티티를 가져옴
-        return $entity;
+        try {
+            // INSERT 시 Entity의 PK는 0 또는 NULL이어야 함 (DB가 ID를 생성하도록)
+            $initialPK = $entity->getPK();
+            $result = $this->model->save($entity);
+            // 최종적으로 DB에 반영된 PK를 반환받습니다. (UPDATE이면 기존 PK, INSERT이면 새 PK)
+            $entity->{$this->getPKField()} = $this->handle_save_result($result, $initialPK);
+            // handle_save_result에서 확인된 최종 PK를 사용하여 DB에서 최신 엔티티를 가져옴
+            return $entity;
+        } catch (\Throwable $e) {
+            log_message('debug', __FUNCTION__ . ":" . var_export($entity, true));
+            log_message('debug', __FUNCTION__ . ":" . $this->model->getLastQuery());
+            throw new RuntimeException(static::class . '->' . __FUNCTION__ . "에서 오류발생:" . $e->getMessage());
+        }
     }
 
     //생성용
@@ -257,6 +261,7 @@ abstract class CommonService
             }
             $entityClass = $this->getEntityClass();
             $entity = new $entityClass($formDatas);
+            dd($entity);
             if (!$entity instanceof $entityClass) {
                 throw new RuntimeException("Return Type은 {$entityClass}만 가능");
             }