add error message in duplicate account

account.py

@@ -155,6 +155,19 @@ class Account(metaclass=PoolMeta):
             ('colgaap', 'Colgaap'),
         ], 'Classification')
 
+    @classmethod
+    def __setup__(cls):
+        super(Account, cls).__setup__()
+        table = cls.__table__()
+        cls._error_messages.update({
+            'bad_operation': ('Operación No permitida.'),
+        })
+
+    @classmethod
+    def copy(cls, records, default=None):
+        cls.raise_user_error('bad_operation')
+        return super(Account, cls).copy(records, default=default)
+
 
 class AuxiliaryBookStart(ModelView):
     'Auxiliary Book Start'