diff --git a/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Delivery_isSplitAndDeferPossible.xml b/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Delivery_isSplitAndDeferPossible.xml
new file mode 100644
index 0000000000000000000000000000000000000000..047a176b0d32074889ef1dc9a02140937b7caee2
--- /dev/null
+++ b/bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/Delivery_isSplitAndDeferPossible.xml
@@ -0,0 +1,123 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <tuple>
+        <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+        <tuple/>
+      </tuple>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>Script_magic</string> </key>
+            <value> <int>3</int> </value>
+        </item>
+        <item>
+            <key> <string>_bind_names</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>_asgns</string> </key>
+                        <value>
+                          <dictionary>
+                            <item>
+                                <key> <string>name_container</string> </key>
+                                <value> <string>container</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_context</string> </key>
+                                <value> <string>context</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_m_self</string> </key>
+                                <value> <string>script</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_subpath</string> </key>
+                                <value> <string>traverse_subpath</string> </value>
+                            </item>
+                          </dictionary>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>_body</string> </key>
+            <value> <string># By default, \'Split and Defer\' is possible for all portal types \\\n
+# that uses delivery_causality_workflow.\n
+return True\n
+</string> </value>
+        </item>
+        <item>
+            <key> <string>_code</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>errors</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>func_code</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="FuncCode" module="Shared.DC.Scripts.Signature"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>co_argcount</string> </key>
+                        <value> <int>0</int> </value>
+                    </item>
+                    <item>
+                        <key> <string>co_varnames</string> </key>
+                        <value>
+                          <tuple>
+                            <string>True</string>
+                          </tuple>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>func_defaults</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>Delivery_isSplitAndDeferPossible</string> </value>
+        </item>
+        <item>
+            <key> <string>warnings</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/delivery_causality_workflow/transitions/split_and_defer_action.xml b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/delivery_causality_workflow/transitions/split_and_defer_action.xml
index 03a3f5fe229f568a93e1ad6c562dc4fe9ed1f191..4768039c35ba0bf1f89854b763d1ea0d909357c8 100644
--- a/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/delivery_causality_workflow/transitions/split_and_defer_action.xml
+++ b/bt5/erp5_base/WorkflowTemplateItem/portal_workflow/delivery_causality_workflow/transitions/split_and_defer_action.xml
@@ -97,7 +97,7 @@
       <dictionary>
         <item>
             <key> <string>text</string> </key>
-            <value> <string>python: here.getSimulationState() not in here.getPortalDraftOrderStateList()</string> </value>
+            <value> <string>python:here.getSimulationState() not in here.getPortalDraftOrderStateList() and here.Delivery_isSplitAndDeferPossible()</string> </value>
         </item>
       </dictionary>
     </pickle>
diff --git a/bt5/erp5_base/bt/change_log b/bt5/erp5_base/bt/change_log
index 7b481c7061a63b56bb2194a2ddfcc1bed487b6da..9c90387ffe09a3ac5759b622663bea9d7d888745 100644
--- a/bt5/erp5_base/bt/change_log
+++ b/bt5/erp5_base/bt/change_log
@@ -1,3 +1,6 @@
+2010-04-26 kazuhiko
+* Add Delivery_isSplitAndDeferPossible script, that should be just a temporary implementation before merging new simulation API, where we can control more flexibly.
+
 2010-04-02 yusei
 * Add precision field to rounding model view.
 
diff --git a/bt5/erp5_base/bt/revision b/bt5/erp5_base/bt/revision
index fc67739109ccf85204d8e150c63439ea87bea5c7..00e6995f0c25eafe85dc68f518fa2a3bfd39bd26 100644
--- a/bt5/erp5_base/bt/revision
+++ b/bt5/erp5_base/bt/revision
@@ -1 +1 @@
-719
\ No newline at end of file
+720
\ No newline at end of file