diff --git a/app/Http/Controllers/Barobill/EaccountController.php b/app/Http/Controllers/Barobill/EaccountController.php
index 7cbd191c..8ba9ee5d 100644
--- a/app/Http/Controllers/Barobill/EaccountController.php
+++ b/app/Http/Controllers/Barobill/EaccountController.php
@@ -951,12 +951,12 @@ public function searchClients(Request $request): JsonResponse
                 ]);
             }
 
-            $clients = Client::searchByCodeOrName($tenantId, $keyword);
+            $clients = Client::searchByIdOrName($tenantId, $keyword);
 
             return response()->json([
                 'success' => true,
                 'data' => $clients->map(fn($c) => [
-                    'code' => $c->client_code,
+                    'code' => (string) $c->id,
                     'name' => $c->name,
                 ])
             ]);
diff --git a/app/Models/Barobill/Client.php b/app/Models/Barobill/Client.php
index 89e490b3..eb34be84 100644
--- a/app/Models/Barobill/Client.php
+++ b/app/Models/Barobill/Client.php
@@ -13,18 +13,20 @@ class Client extends Model
     protected $table = 'clients';
 
     /**
-     * 거래처코드 또는 거래처명으로 검색
+     * 고유번호(id) 또는 거래처명으로 검색
      */
-    public static function searchByCodeOrName(int $tenantId, string $keyword, int $limit = 20)
+    public static function searchByIdOrName(int $tenantId, string $keyword, int $limit = 20)
     {
         return self::where('tenant_id', $tenantId)
             ->where('is_active', true)
             ->where(function ($query) use ($keyword) {
-                $query->where('client_code', 'like', "%{$keyword}%")
-                      ->orWhere('name', 'like', "%{$keyword}%");
+                if (is_numeric($keyword)) {
+                    $query->where('id', $keyword);
+                }
+                $query->orWhere('name', 'like', "%{$keyword}%");
             })
-            ->select('client_code', 'name')
-            ->orderBy('client_code')
+            ->select('id', 'name')
+            ->orderBy('id')
             ->limit($limit)
             ->get();
     }