diff --git a/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Event_send.xml b/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Event_send.xml
index db839892d3573183f41199385fda8da9b986b402..f2d7b08473e05af9b990c5b831e79567d1c36c43 100644
--- a/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Event_send.xml
+++ b/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Event_send.xml
@@ -55,6 +55,8 @@
             <key> <string>_body</string> </key>
             <value> <string encoding="cdata"><![CDATA[
 
+portal = context.getPortalObject()\n
+\n
 if body is None:\n
   body = context.getTextContent() #XXX This does not support structured text format.\n
 \n
@@ -73,7 +75,7 @@ if from_url is None:\n
 \n
 # Return-Path\n
 if reply_url is None:\n
-  reply_url = context.portal_preferences.getPreferredEventSenderEmail()\n
+  reply_url = portal.portal_preferences.getPreferredEventSenderEmail()\n
 additional_headers = None\n
 if reply_url:\n
   additional_headers = {\'Return-Path\':reply_url}\n
@@ -133,9 +135,9 @@ context.setData(mail_message)\n
 \n
 # Transit event workflow\n
 if context.getTypeInfo() is not None:\n
-  context.plan()\n
-  context.order()\n
-  context.start()\n
+  for transition_id in \'plan\', \'order\', \'start\':\n
+    if portal.portal_workflow.isTransitionPossible(context, transition_id):\n
+      getattr(context, transition_id)()\n
 \n
 if download:\n
   return mail_message\n
@@ -194,9 +196,10 @@ if download:\n
                             <string>attachment_list</string>
                             <string>download</string>
                             <string>kw</string>
-                            <string>None</string>
                             <string>_getattr_</string>
                             <string>context</string>
+                            <string>portal</string>
+                            <string>None</string>
                             <string>sender</string>
                             <string>additional_headers</string>
                             <string>to_url_list</string>
@@ -221,6 +224,8 @@ if download:\n
                             <string>attachment_dict</string>
                             <string>_getitem_</string>
                             <string>str</string>
+                            <string>transition_id</string>
+                            <string>getattr</string>
                           </tuple>
                         </value>
                     </item>
diff --git a/bt5/erp5_base/bt/revision b/bt5/erp5_base/bt/revision
index a9ba1259cffcec623e16c1da4d1a05e47aad1015..6f4cec90d97e3a1765e48b3211c2c1ea1c46bb1d 100644
--- a/bt5/erp5_base/bt/revision
+++ b/bt5/erp5_base/bt/revision
@@ -1 +1 @@
-607
\ No newline at end of file
+608
\ No newline at end of file
diff --git a/bt5/erp5_crm/WorkflowTemplateItem/portal_workflow/event_workflow/transitions/acknowledge_event.xml b/bt5/erp5_crm/WorkflowTemplateItem/portal_workflow/event_workflow/transitions/acknowledge_event.xml
index 6d8263b6d6791f82e1d634e30c7dfaa91c8b2f7b..a50f2e3af52fb9dd12c6f8f91e180eec2cc3e172 100644
--- a/bt5/erp5_crm/WorkflowTemplateItem/portal_workflow/event_workflow/transitions/acknowledge_event.xml
+++ b/bt5/erp5_crm/WorkflowTemplateItem/portal_workflow/event_workflow/transitions/acknowledge_event.xml
@@ -37,7 +37,7 @@
         </item>
         <item>
             <key> <string>id</string> </key>
-            <value> <string>acknowledge</string> </value>
+            <value> <string>acknowledge_event</string> </value>
         </item>
         <item>
             <key> <string>new_state_id</string> </key>
diff --git a/bt5/erp5_crm/bt/revision b/bt5/erp5_crm/bt/revision
index f9945368e6a42bd79f66d17333a2c68a0d5f1e96..1e59c84a3a5150b77a9a325861bcd9cc79d709ea 100644
--- a/bt5/erp5_crm/bt/revision
+++ b/bt5/erp5_crm/bt/revision
@@ -1 +1 @@
-419
\ No newline at end of file
+420
\ No newline at end of file