diff --git a/app/Http/Controllers/Api/Admin/Barobill/BarobillConfigController.php b/app/Http/Controllers/Api/Admin/Barobill/BarobillConfigController.php
index c19ac817..690639d7 100644
--- a/app/Http/Controllers/Api/Admin/Barobill/BarobillConfigController.php
+++ b/app/Http/Controllers/Api/Admin/Barobill/BarobillConfigController.php
@@ -235,13 +235,15 @@ public function toggleActive(int $id): JsonResponse
 
     /**
      * barobill_companies에서 barobill_members로 동기화
+     * chandj DB(sales 레거시)에서 데이터를 가져와 samdb(MNG)로 동기화
      */
     public function syncCompanies(): JsonResponse
     {
         DB::beginTransaction();
         try {
-            // barobill_companies 테이블에서 데이터 조회
-            $companies = DB::table('barobill_companies')
+            // chandj DB의 barobill_companies 테이블에서 데이터 조회
+            $companies = DB::connection('chandj')
+                ->table('barobill_companies')
                 ->where('is_active', 1)
                 ->whereNotNull('barobill_user_id')
                 ->get();
@@ -300,18 +302,29 @@ public function syncCompanies(): JsonResponse
     }
 
     /**
-     * barobill_companies 목록 조회
+     * barobill_companies 목록 조회 (chandj DB)
      */
     public function getCompanies(): JsonResponse
     {
-        $companies = DB::table('barobill_companies')
-            ->select('id', 'company_name', 'corp_num', 'barobill_user_id', 'ceo_name', 'is_active', 'memo', 'created_at')
-            ->orderBy('id')
-            ->get();
+        try {
+            $companies = DB::connection('chandj')
+                ->table('barobill_companies')
+                ->select('id', 'company_name', 'corp_num', 'barobill_user_id', 'ceo_name', 'is_active', 'memo', 'created_at')
+                ->orderBy('id')
+                ->get();
 
-        return response()->json([
-            'success' => true,
-            'data' => $companies,
-        ]);
+            return response()->json([
+                'success' => true,
+                'data' => $companies,
+            ]);
+        } catch (\Exception $e) {
+            Log::error('chandj DB 연결 실패', ['error' => $e->getMessage()]);
+
+            return response()->json([
+                'success' => false,
+                'message' => 'chandj DB 연결에 실패했습니다: ' . $e->getMessage(),
+                'data' => [],
+            ]);
+        }
     }
 }
diff --git a/config/database.php b/config/database.php
index 53dcae02..138eeb3a 100644
--- a/config/database.php
+++ b/config/database.php
@@ -63,6 +63,23 @@
             ]) : [],
         ],
 
+        // sales 레거시 시스템 DB (chandj)
+        'chandj' => [
+            'driver' => 'mysql',
+            'host' => env('CHANDJ_DB_HOST', 'sam-mysql-1'),
+            'port' => env('CHANDJ_DB_PORT', '3306'),
+            'database' => env('CHANDJ_DB_DATABASE', 'chandj'),
+            'username' => env('CHANDJ_DB_USERNAME', 'root'),
+            'password' => env('CHANDJ_DB_PASSWORD', 'root'),
+            'unix_socket' => '',
+            'charset' => 'utf8mb4',
+            'collation' => 'utf8mb4_unicode_ci',
+            'prefix' => '',
+            'prefix_indexes' => true,
+            'strict' => false,
+            'engine' => null,
+        ],
+
         'mariadb' => [
             'driver' => 'mariadb',
             'url' => env('DB_URL'),