diff --git a/wechat/doc/index.rst b/wechat/doc/index.rst
index 13a53b7ee4..a3aebe2f98 100644
--- a/wechat/doc/index.rst
+++ b/wechat/doc/index.rst
@@ -30,6 +30,6 @@ Configuration
 
   * ``wechat.app_id``
   * ``wechat.app_secret``
-  * ``wechat.vendor_id``
-  * ``wechat.sandbox`` -- set to ``0`` to disable and any other value to
-    activate. It's disabled by default.
+  * ``wechat.mch_id`` -- *Vendor ID*
+  * ``wechat.sub_mch_id`` -- *Sub Vendor ID*
+  * ``wechat.sandbox`` -- set to ``0`` or delete to disable. Any other value to means that sandbox is activated.
diff --git a/wechat/models/ir_config_parameter.py b/wechat/models/ir_config_parameter.py
index 3cf0339fbf..476f35142d 100644
--- a/wechat/models/ir_config_parameter.py
+++ b/wechat/models/ir_config_parameter.py
@@ -18,12 +18,24 @@ def get_wechat_pay_object(self):
         if sandbox:
             _logger.info('Sandbox Mode is used for WeChat API')
 
+        print ('ARGS', (
+            self.get_param('wechat.app_id'),
+            self.get_param('wechat.app_secret'),
+            self.get_param('wechat.mch_id'),
+            sandbox,
+            self.get_param('wechat.sub_mch_id'),
+            # TODO rest args
+            # self.sub_mch_id = sub_mch_id
+            # self.mch_cert = mch_cert
+            # self.mch_key = mch_key
+            # self.timeout = timeout
+        ))
         return WeChatPay(
             self.get_param('wechat.app_id'),
             self.get_param('wechat.app_secret'),
-            self.get_param('wechat.vendor_id'),
+            self.get_param('wechat.mch_id'),
             sandbox=sandbox,
-            sub_mch_id=self.get_param('wechat.vendor_id'),  # TODO make separate param. Keep this only for testing
+            sub_mch_id=self.get_param('wechat.sub_mch_id'),
             # TODO rest args
             # self.sub_mch_id = sub_mch_id
             # self.mch_cert = mch_cert
diff --git a/wechat/models/wechat_order.py b/wechat/models/wechat_order.py
index 34bd246c51..7c8edf4d7f 100644
--- a/wechat/models/wechat_order.py
+++ b/wechat/models/wechat_order.py
@@ -114,6 +114,7 @@ def create_qr(self, lines, total_fee, create_vals=None, **kwargs):
         """
         debug = self.env['ir.config_parameter'].get_param('wechat.local_sandbox') == '1'
         vals = {
+            'trade_type': 'NATIVE',
             'line_ids': [(0, 0, data) for data in lines],
             'debug': debug,
         }
@@ -145,7 +146,7 @@ def create_qr(self, lines, total_fee, create_vals=None, **kwargs):
                 total_fee,
                 body,
                 total_fee,
-                self._notify_url,
+                self._notify_url(),
                 out_trade_no=order.id,
                 # TODO fee_type=record.currency_id.name
             )