diff --git a/netforce_clinic/models/product.py b/netforce_clinic/models/product.py
index 235721d..36b3fd3 100644
--- a/netforce_clinic/models/product.py
+++ b/netforce_clinic/models/product.py
@@ -2,6 +2,7 @@ from netforce.model import Model, fields
 
 class Product(Model):
     _inherit="product"
+
     _fields={
         'patient_types': fields.Many2Many("clinic.patient.type","Patient Types"),
         'departments': fields.One2Many('clinic.department.product','product_id','Departments'),
@@ -9,4 +10,31 @@ class Product(Model):
         'account_products': fields.One2Many('clinic.setting.account.product','product_id','Account Products'),
     }
 
+    #TODO
+    def copy_master(self,ids,context={}):
+        obj=self.browse(ids)[0]
+        master_code=obj.code.split("-")[0]
+        dom=[
+            ['code','=',master_code]
+        ]
+        res=self.search(dom)
+        if res:
+            raise Exception("Master product is already exist")
+        vals={
+            'code': master_code,
+            'name': obj.name.split("-")[0],
+            'description': obj.description,
+            'categ_id': obj.categ_id and obj.categ_id.id,
+        }
+        new_id=self.create(vals)
+        return {
+            'next': {
+                'name': 'product',
+                'mode': 'form',
+                'active_id': new_id,
+            },
+            'flash': "Copy master product successfull",
+        }
+
+
 Product.register()