diff --git a/bt5/erp5_trade/TestTemplateItem/portal_components/test.erp5.testInventory.py b/bt5/erp5_trade/TestTemplateItem/portal_components/test.erp5.testInventory.py
index 533c97e28f48257f8a4c5bb07fc66f69346f449a..1e9a72ff699743bc076cd625346da2b01a1a1c1c 100644
--- a/bt5/erp5_trade/TestTemplateItem/portal_components/test.erp5.testInventory.py
+++ b/bt5/erp5_trade/TestTemplateItem/portal_components/test.erp5.testInventory.py
@@ -55,6 +55,7 @@ from Products.ERP5Form.Selection import DomainSelection
 from Products.ERP5Type.tests.utils import createZODBPythonScript
 from textwrap import dedent
 from zExceptions import BadRequest
+from Products.ERP5Type.UnrestrictedMethod import UnrestrictedMethod
 
 class TestInventory(TestOrderMixin, ERP5TypeTestCase):
   """
@@ -1893,7 +1894,7 @@ class TestInventory(TestOrderMixin, ERP5TypeTestCase):
                     sequence.get('node').getRelativeUrl()))
 
 
-
+  @UnrestrictedMethod
   def stepModifyFirstInventory(self, sequence=None, sequence_list=None, **kw):
     """
       Modify the first entered Inventory, to test the quantity change