diff --git a/datamodels/2.x/itop-change-mgmt-itil/datamodel.itop-change-mgmt-itil.xml b/datamodels/2.x/itop-change-mgmt-itil/datamodel.itop-change-mgmt-itil.xml
index aadb4e190e..43f4e3216b 100755
--- a/datamodels/2.x/itop-change-mgmt-itil/datamodel.itop-change-mgmt-itil.xml
+++ b/datamodels/2.x/itop-change-mgmt-itil/datamodel.itop-change-mgmt-itil.xml
@@ -105,6 +105,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="supervisor_email" xsi:type="AttributeExternalField">
@@ -133,6 +134,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="manager_email" xsi:type="AttributeExternalField">
diff --git a/datamodels/2.x/itop-config-mgmt/datamodel.itop-config-mgmt.xml b/datamodels/2.x/itop-config-mgmt/datamodel.itop-config-mgmt.xml
index 62d30ce962..98811c5ec7 100755
--- a/datamodels/2.x/itop-config-mgmt/datamodel.itop-config-mgmt.xml
+++ b/datamodels/2.x/itop-config-mgmt/datamodel.itop-config-mgmt.xml
@@ -486,6 +486,7 @@
           <target_class>Location</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="location_name" xsi:type="AttributeExternalField">
           <extkey_attcode>location_id</extkey_attcode>
@@ -1523,6 +1524,7 @@
           <target_class>Location</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="location_name" xsi:type="AttributeExternalField">
           <extkey_attcode>location_id</extkey_attcode>
@@ -1936,6 +1938,7 @@
           <target_class>Rack</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="rack_name" xsi:type="AttributeExternalField">
           <extkey_attcode>rack_id</extkey_attcode>
@@ -1950,6 +1953,7 @@
           <target_class>Enclosure</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="enclosure_name" xsi:type="AttributeExternalField">
           <extkey_attcode>enclosure_id</extkey_attcode>
@@ -1974,6 +1978,7 @@
           <target_class>PowerConnection</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="powerA_name" xsi:type="AttributeExternalField">
           <extkey_attcode>powerA_id</extkey_attcode>
@@ -1988,6 +1993,7 @@
           <target_class>PowerConnection</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="powerB_name" xsi:type="AttributeExternalField">
           <extkey_attcode>powerB_id</extkey_attcode>
@@ -3154,6 +3160,7 @@
           <target_class>FunctionalCI</target_class>
           <is_null_allowed>false</is_null_allowed>
           <on_target_delete>DEL_AUTO</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="system_name" xsi:type="AttributeExternalField">
           <extkey_attcode>system_id</extkey_attcode>
@@ -3179,6 +3186,7 @@
           <target_class>SoftwareLicence</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="softwarelicence_name" xsi:type="AttributeExternalField">
           <extkey_attcode>softwarelicence_id</extkey_attcode>
diff --git a/datamodels/2.x/itop-datacenter-mgmt/datamodel.itop-datacenter-mgmt.xml b/datamodels/2.x/itop-datacenter-mgmt/datamodel.itop-datacenter-mgmt.xml
index 5a03e2a46a..5468451a99 100755
--- a/datamodels/2.x/itop-datacenter-mgmt/datamodel.itop-datacenter-mgmt.xml
+++ b/datamodels/2.x/itop-datacenter-mgmt/datamodel.itop-datacenter-mgmt.xml
@@ -769,6 +769,7 @@
           <target_class>Rack</target_class>
           <is_null_allowed>false</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="rack_name" xsi:type="AttributeExternalField">
           <extkey_attcode>rack_id</extkey_attcode>
@@ -783,6 +784,8 @@
           <target_class>PowerConnection</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="powerstart_name" xsi:type="AttributeExternalField">
           <extkey_attcode>powerstart_id</extkey_attcode>
diff --git a/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml b/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
index 14b30acf2e..ba79b83920 100755
--- a/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
+++ b/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
@@ -106,6 +106,7 @@
           <target_class>Service</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="service_name" xsi:type="AttributeExternalField">
           <extkey_attcode>service_id</extkey_attcode>
@@ -120,6 +121,7 @@
           <target_class>ServiceSubcategory</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="servicesubcategory_name" xsi:type="AttributeExternalField">
           <extkey_attcode>servicesubcategory_id</extkey_attcode>
diff --git a/datamodels/2.x/itop-problem-mgmt/datamodel.itop-problem-mgmt.xml b/datamodels/2.x/itop-problem-mgmt/datamodel.itop-problem-mgmt.xml
index 7aba666eb6..7f4fc98f0e 100755
--- a/datamodels/2.x/itop-problem-mgmt/datamodel.itop-problem-mgmt.xml
+++ b/datamodels/2.x/itop-problem-mgmt/datamodel.itop-problem-mgmt.xml
@@ -57,6 +57,7 @@
           <target_class>Service</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="service_name" xsi:type="AttributeExternalField">
           <extkey_attcode>service_id</extkey_attcode>
@@ -71,6 +72,7 @@
           <target_class>ServiceSubcategory</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="servicesubcategory_name" xsi:type="AttributeExternalField">
           <extkey_attcode>servicesubcategory_id</extkey_attcode>
diff --git a/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml b/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
index 190ddc7326..ce85542bbd 100755
--- a/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
+++ b/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
@@ -140,6 +140,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="approver_email" xsi:type="AttributeExternalField">
           <extkey_attcode>approver_id</extkey_attcode>
@@ -154,6 +155,7 @@
           <target_class>Service</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="service_name" xsi:type="AttributeExternalField">
           <extkey_attcode>service_id</extkey_attcode>
@@ -169,6 +171,7 @@
           <target_class>ServiceSubcategory</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="servicesubcategory_name" xsi:type="AttributeExternalField">
diff --git a/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml b/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
index 135b4cd5cf..0655e327e7 100755
--- a/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
+++ b/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
@@ -135,6 +135,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="approver_email" xsi:type="AttributeExternalField">
@@ -151,6 +152,7 @@
           <target_class>Service</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="service_name" xsi:type="AttributeExternalField">
@@ -168,6 +170,7 @@
           <target_class>ServiceSubcategory</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
           <jointype/>
         </field>
         <field id="servicesubcategory_name" xsi:type="AttributeExternalField">
diff --git a/datamodels/2.x/itop-service-mgmt-provider/datamodel.itop-service-mgmt-provider.xml b/datamodels/2.x/itop-service-mgmt-provider/datamodel.itop-service-mgmt-provider.xml
index 29fd65338f..7780e990b2 100755
--- a/datamodels/2.x/itop-service-mgmt-provider/datamodel.itop-service-mgmt-provider.xml
+++ b/datamodels/2.x/itop-service-mgmt-provider/datamodel.itop-service-mgmt-provider.xml
@@ -36,6 +36,7 @@
           <target_class>Team</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_AUTO</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
       </fields>
     </class>
diff --git a/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml b/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
index 91168ab1b4..dc9e64e8c7 100755
--- a/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
+++ b/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
@@ -36,6 +36,7 @@
           <target_class>Team</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_AUTO</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
       </fields>
     </class>
diff --git a/datamodels/2.x/itop-tickets/datamodel.itop-tickets.xml b/datamodels/2.x/itop-tickets/datamodel.itop-tickets.xml
index 9a6d16c53d..e32fcbeb84 100755
--- a/datamodels/2.x/itop-tickets/datamodel.itop-tickets.xml
+++ b/datamodels/2.x/itop-tickets/datamodel.itop-tickets.xml
@@ -82,6 +82,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_AUTO</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="agent_name" xsi:type="AttributeExternalField">
           <extkey_attcode>agent_id</extkey_attcode>
@@ -537,6 +538,7 @@
           <target_class>Person</target_class>
           <is_null_allowed>true</is_null_allowed>
           <on_target_delete>DEL_MANUAL</on_target_delete>
+	  <allow_target_creation>false</allow_target_creation>
         </field>
         <field id="agent_email" xsi:type="AttributeExternalField">
           <extkey_attcode>agent_id</extkey_attcode>