diff --git a/103120/examples/request4-Preservation-Link.xml b/103120/examples/request4-Preservation-Link.xml
new file mode 100644
index 0000000000000000000000000000000000000000..2cb2ffdfb4e4a3b4b94d8ccbf1304844314dd83d
--- /dev/null
+++ b/103120/examples/request4-Preservation-Link.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<HI1Message xmlns="http://uri.etsi.org/03120/common/2019/10/Core" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:common="http://uri.etsi.org/03120/common/2016/02/Common" xmlns:task="http://uri.etsi.org/03120/common/2020/09/Task" xmlns:auth="http://uri.etsi.org/03120/common/2020/09/Authorisation">
+    <Header>
+        <SenderIdentifier>
+            <CountryCode>XX</CountryCode>
+            <UniqueIdentifier>ACTOR01</UniqueIdentifier>
+        </SenderIdentifier>
+        <ReceiverIdentifier>
+            <CountryCode>XX</CountryCode>
+            <UniqueIdentifier>ACTOR02</UniqueIdentifier>
+        </ReceiverIdentifier>
+        <TransactionIdentifier>c02358b2-76cf-4ba4-a8eb-f6436ccaea2e</TransactionIdentifier>
+        <Timestamp>2019-09-30T13:37:00.000000Z</Timestamp>
+        <Version>
+            <ETSIVersion>V1.14.1</ETSIVersion>
+            <NationalProfileOwner>XX</NationalProfileOwner>
+            <NationalProfileVersion>v1.0</NationalProfileVersion>
+        </Version>
+    </Header>
+    <Payload>
+        <RequestPayload>
+            <ActionRequests>
+                <ActionRequest>
+                    <ActionIdentifier>0</ActionIdentifier>
+                    <CREATE>
+                        <HI1Object xsi:type="auth:AuthorisationObject">
+                            <ObjectIdentifier>7dbbc880-8750-4d3c-abe7-ea4a17646045</ObjectIdentifier>
+                            <CountryCode>XX</CountryCode>
+                            <OwnerIdentifier>ACTOR01</OwnerIdentifier>
+                            <auth:AuthorisationReference>W000001</auth:AuthorisationReference>
+                            <auth:AuthorisationTimespan>
+                                <auth:StartTime>2019-09-30T12:00:00Z</auth:StartTime>
+                                <auth:EndTime>2019-12-01T12:00:00Z</auth:EndTime>
+                            </auth:AuthorisationTimespan>
+                        </HI1Object>
+                    </CREATE>
+                </ActionRequest>
+                <ActionRequest>
+                    <ActionIdentifier>1</ActionIdentifier>
+                    <CREATE>
+                        <HI1Object xsi:type="task:LDTaskObject">
+                            <ObjectIdentifier>2b36a78b-b628-416d-bd22-404e68a0cd36</ObjectIdentifier>
+                            <CountryCode>XX</CountryCode>
+                            <OwnerIdentifier>ACTOR01</OwnerIdentifier>
+                            <AssociatedObjects>
+                                <AssociatedObject>7dbbc880-8750-4d3c-abe7-ea4a17646045</AssociatedObject>
+                            </AssociatedObjects>
+                            <task:Reference>XX-ACTOR01-1234</task:Reference>
+                            <task:RequestDetails>
+                                <task:StartTime>2019-09-30T12:00:00Z</task:StartTime>
+                                <task:EndTime>2019-12-30T12:00:00Z</task:EndTime>
+                                <task:RequestValues>
+                                    <task:RequestValue>
+                                        <task:FormatType>
+                                            <task:FormatOwner>ETSI</task:FormatOwner>
+                                            <task:FormatName>InternationalE164</task:FormatName>
+                                        </task:FormatType>
+                                        <task:Value>442079460223</task:Value>
+                                    </task:RequestValue>
+                                </task:RequestValues>
+                            </task:RequestDetails>
+                            <task:DeliveryDetails>
+                                <task:LDDeliveryDestination>
+                                    <task:DeliveryAddress>
+                                        <task:IPv4Address>192.0.2.0</task:IPv4Address>
+                                    </task:DeliveryAddress>
+                                </task:LDDeliveryDestination>
+                            </task:DeliveryDetails>
+                            <task:CSPID>
+                                <CountryCode>XX</CountryCode>
+                                <UniqueIdentifier>ACTOR02</UniqueIdentifier>
+                            </task:CSPID>
+                            <task:AlternativePreservationReferences>
+                                <task:AlternativePreservationReference>
+                                    <task:ReferenceValue>ExternalReferenceValue</task:ReferenceValue>
+                                    <task:NatureOfReference>Preservation Request Type</task:NatureOfReference>
+                                </task:AlternativePreservationReference>
+                            </task:AlternativePreservationReferences>
+                        </HI1Object>
+                    </CREATE>
+                </ActionRequest>
+            </ActionRequests>
+        </RequestPayload>
+    </Payload>
+</HI1Message>
diff --git a/103120/schema/ts_103120_Task.xsd b/103120/schema/ts_103120_Task.xsd
index bef4f8aa6976b0c3b6b10910c442554bbda71dab..07741d724c65de8d982bcf6403a3ac07d1193535 100644
--- a/103120/schema/ts_103120_Task.xsd
+++ b/103120/schema/ts_103120_Task.xsd
@@ -121,6 +121,7 @@
                     <xs:element name="CSPID" type="core:EndpointID" minOccurs="0"/>
                     <xs:element name="HandlingProfile" type="common:DictionaryEntry" minOccurs="0"/>
                     <xs:element name="Flags" type="LDTaskFlags" minOccurs="0"/>
+                    <xs:element name="AlternativePreservationReferences" type="ListOfAlternativePreservationReferences" minOccurs="0"/>
                     <xs:element name="NationalLDTaskingParameters" type="NationalLDTaskingParameters" minOccurs="0"/>
                 </xs:sequence>
             </xs:extension>
@@ -172,6 +173,17 @@
             <xs:element name="LDTaskFlag" type="common:DictionaryEntry" minOccurs="0" maxOccurs="unbounded"/>
         </xs:sequence>
     </xs:complexType>
+    <xs:complexType name="ListOfAlternativePreservationReferences">
+        <xs:sequence>
+            <xs:element name="AlternativePreservationReference" type="AlternativePreservationReference" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="AlternativePreservationReference">
+        <xs:sequence>
+            <xs:element name="ReferenceValue" type="etsi:LongString"/>
+            <xs:element name="NatureOfReference" type="etsi:LongString" minOccurs="0"/>
+        </xs:sequence>
+    </xs:complexType>
     <xs:complexType name="NationalLDTaskingParameters" abstract="true">
         <xs:sequence>
             <xs:element name="CountryCode" type="etsi:ISOCountryCode"/>