diff --git a/__init__.py b/__init__.py
index 16e73fd..6319310 100644
--- a/__init__.py
+++ b/__init__.py
@@ -14,5 +14,6 @@ def register():
         sale.AppOrderViewer,
         sale.AppSaleCallCenter,
         sale.AppSelfServiceSale,
+        sale.AppSaleTurn,
         dash.DashApp,
         module='dash_sale', type_='model')
diff --git a/dash.py b/dash.py
index 8168661..eef12f1 100644
--- a/dash.py
+++ b/dash.py
@@ -16,6 +16,7 @@ class DashApp(metaclass=PoolMeta):
             'dash.app.order_viewer',
             'dash.app.self_service_sale',
             'dash.app.sale_call_center',
+            'dash.app.sale_turn',
         ])
         return origins
 
@@ -29,5 +30,6 @@ class DashApp(metaclass=PoolMeta):
             ('order_viewer', 'Order Viewer'),
             ('self_service_sale', 'Self-Service Sale'),
             ('sale_call_center', 'Sale Call Center'),
+            ('sale_turn', 'Sale Turn'),
         ])
         return options
diff --git a/sale.py b/sale.py
index 2a0ef7f..b8552f8 100644
--- a/sale.py
+++ b/sale.py
@@ -270,12 +270,12 @@ class Sale(metaclass=PoolMeta):
             line, = StatementLine.create([to_create])
             line.create_move()
         cls.wizard_generate_invoice([sale])
-        qr_code = sale.number + ' ' + str(sale.sale_date)
+        barcode = sale.number
         data_order = cls.get_order2print({'sale_id': sale_id, 'repeat': True})
         data_invoice = cls.get_data({'sale_id': sale_id, 'type_doc': 'invoice'})
-        data_invoice['qr_code'] = qr_code
+        data_invoice['barcode'] = barcode
         for d in data_order[0].values():
-            d['qr_code'] = qr_code
+            d['barcode'] = barcode
         shop = sale.shop
         ctx = {
             'company': sale.company.party.name,
@@ -869,7 +869,16 @@ class AppSelfServiceSale(DashAppBase):
     'App Self Service Sale'
     __name__ = 'dash.app.self_service_sale'
 
+    def validate_app(self, args):
+
+        return {'status': 'ok'}
+
 
 class AppSaleCallCenter(DashAppBase):
     'App Sale Call Center'
     __name__ = 'dash.app.sale_call_center'
+
+
+class AppSaleTurn(DashAppBase):
+    'App Sale Turn'
+    __name__ = 'dash.app.sale_turn'