Create/Amend a single Item User Defined Cost

Creates a single User Defined Cost for Item UDCCT01301.

<?xml version="1.0" encoding="UTF-8"?>
<!-- This payload creates -->
<SSC>
   <User>
      <Name>PKP</Name>
   </User>
   <SunSystemsContext>
      <BusinessUnit>PKP</BusinessUnit>
   </SunSystemsContext>
   <Payload>
      <Item>
         <ItemCode>UDCCT01301</ItemCode>
         <Costs>
            <CostAnalysisId>2</CostAnalysisId>
            <CostTypeCode>UNIT</CostTypeCode>
            <CurrencyCode>GBP</CurrencyCode>
            <ItemUserDefinedCost>
               <ItemUserDefinedValue>1.1</ItemUserDefinedValue>
               <Period>0012003</Period>
               <UserDefinedCostDefinitionCode>UDC01</UserDefinedCostDefinitionCode>
            </ItemUserDefinedCost>
         </Costs>
      </Item>
   </Payload>
</SSC>