The following example assigns a literal result element to the payload part of the output variable:

<assign>
   <!-- copy from literal xml to the variable -->
   <copy>
      <from>
         <result xmlns="http://samples.otn.com">
            <name/>
            <symbol/>
            <price>12.3</price>
            <quantity>0</quantity>
            <approved/>
            <message/>
         </result>
      </from>
      <to variable="output" part="payload"/>
   </copy>
</assign>