diff --git a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/open.xml b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/open.xml
index 0207ecdd242cc3e57a5374e01b2033e1a2529337..6a617f97f21fd35bd4005f6102f5c0f74da46881 100644
--- a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/open.xml
+++ b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/open.xml
@@ -44,9 +44,17 @@
                 <string>cancel_action</string>
                 <string>close</string>
                 <string>close_action</string>
+                <string>update</string>
+                <string>update_action</string>
               </tuple>
             </value>
         </item>
+        <item>
+            <key> <string>type_list</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
       </dictionary>
     </pickle>
   </record>
diff --git a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/updated.xml b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/updated.xml
new file mode 100644
index 0000000000000000000000000000000000000000..c5f426c9ee5478b2398ef378c26c8620610af1fb
--- /dev/null
+++ b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/states/updated.xml
@@ -0,0 +1,90 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <tuple>
+        <tuple>
+          <string>Products.DCWorkflow.States</string>
+          <string>StateDefinition</string>
+        </tuple>
+        <none/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>__ac_local_roles__</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value> <string>Assignments in updated state are being updated before being reopened.</string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>updated</string> </value>
+        </item>
+        <item>
+            <key> <string>permission_roles</string> </key>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+            </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string>Updated</string> </value>
+        </item>
+        <item>
+            <key> <string>transitions</string> </key>
+            <value>
+              <tuple>
+                <string>cancel</string>
+                <string>cancel_action</string>
+                <string>open</string>
+                <string>open_action</string>
+              </tuple>
+            </value>
+        </item>
+        <item>
+            <key> <string>type_list</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <tuple>
+        <tuple>
+          <string>Persistence</string>
+          <string>PersistentMapping</string>
+        </tuple>
+        <none/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_container</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>Modify portal content</string> </key>
+                    <value>
+                      <tuple>
+                        <string>Assignor</string>
+                        <string>Manager</string>
+                      </tuple>
+                    </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update.xml b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update.xml
new file mode 100644
index 0000000000000000000000000000000000000000..0c89f22044207e8c7840e3dd705249eb80a3d55f
--- /dev/null
+++ b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update.xml
@@ -0,0 +1,70 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <tuple>
+        <tuple>
+          <string>Products.DCWorkflow.Transitions</string>
+          <string>TransitionDefinition</string>
+        </tuple>
+        <none/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>__ac_local_roles__</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>actbox_category</string> </key>
+            <value> <string>workflow</string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_name</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_url</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>after_script_name</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>guard</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>update</string> </value>
+        </item>
+        <item>
+            <key> <string>new_state_id</string> </key>
+            <value> <string>updated</string> </value>
+        </item>
+        <item>
+            <key> <string>script_name</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>trigger_type</string> </key>
+            <value> <int>2</int> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update_action.xml b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update_action.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6b770a8ca59488f90d26d2d01c5d9c0b2f84f841
--- /dev/null
+++ b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/assignment_workflow/transitions/update_action.xml
@@ -0,0 +1,94 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <tuple>
+        <tuple>
+          <string>Products.DCWorkflow.Transitions</string>
+          <string>TransitionDefinition</string>
+        </tuple>
+        <none/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>__ac_local_roles__</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>actbox_category</string> </key>
+            <value> <string>workflow</string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_name</string> </key>
+            <value> <string>Update Assignment</string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_url</string> </key>
+            <value> <string>%(content_url)s/BaseWorkflow_viewWorkflowActionDialog?workflow_action=update_action</string> </value>
+        </item>
+        <item>
+            <key> <string>after_script_name</string> </key>
+            <value> <string>update</string> </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value> <string>With this action, the Manager of the Assignor can update the assignment data before reopening it.</string> </value>
+        </item>
+        <item>
+            <key> <string>guard</string> </key>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>update_action</string> </value>
+        </item>
+        <item>
+            <key> <string>new_state_id</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>script_name</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string>Update Assignment</string> </value>
+        </item>
+        <item>
+            <key> <string>trigger_type</string> </key>
+            <value> <int>1</int> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <tuple>
+        <tuple>
+          <string>Products.DCWorkflow.Guard</string>
+          <string>Guard</string>
+        </tuple>
+        <none/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>roles</string> </key>
+            <value>
+              <tuple>
+                <string>Assignor</string>
+                <string>Manager</string>
+              </tuple>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>