Dear Jwala,
I have gone through the notes and I modified my UWL as below
<ItemType name="uwl.task.webflow.TS21500004.SAP_ECC_HumanResources" connector="WebFlowConnector" defaultView="DefaultView" defaultAction="defaultAction" executionMode="default">
<ItemTypeCriteria systemId="SAP_ECC_HumanResources" externalType=" TS21500004" connector="WebFlowConnector"/>
<CustomAttributes>
<CustomAttributeSource id="WEBFLOW_CONTAINER" objectIdHolder="externalObjectId" objectType="WebflowContainer" cacheValidity="final">
<Attribute name="REQUESTID" type="string" displayName="Request ID"/>
</CustomAttributeSource>
</CustomAttributes>
<Actions>
<Action name="defaultAction" groupAction="" handler="ObjectNavigationLauncher" returnToDetailViewAllowed="yes" launchInNewWindow="yes">
<Properties>
<Property name="WebDynproConfiguration" value="HRESS_AC_PTARQ_LEAVREQ"/>
<Property name="Operation" value="approveleaverequest"/>
<Property name="ObjectValue" value="LRF_REQUEST_ID=${item.REQUESTID}" />
<Property name="DynamicParameter" value="LRF_REQUEST_ID=${item.REQUESTID}"/>
<Property name="openInNewWindow" value="true"/>
<Property name="ObjectName" value="employee"/>
<Property name="System" value="SAP_ERP_HumanResources"/>
</Properties>
<Descriptions default="defaultAction"/>
</Action>
</Actions>
</ItemType>
Here is UWL task
Still I am getting error as below