diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index c47bf1357c8..4ab3dc996f3 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -87,6 +87,13 @@ class sale_order(osv.osv):
         return res
 
 
+    def test_state(self, cr, uid, ids, mode, *args):
+        return True
+    def action_ship_create(self, cr, uid, ids, context=None):
+        return True
+    def action_ship_end(self, cr, uid, ids, context=None):
+        return True
+
     def _invoiced_rate(self, cursor, user, ids, name, arg, context=None):
         res = {}
         for sale in self.browse(cursor, user, ids, context=context):