I want to pass the dynamic values from mashup code to host application. I am using below code but its not working. I need to retrieve the PartnerID parameter into pyDefault data trasform but its not getting into DT. 

<div data-pega-encrypted ='true'  data-pega-gadgetname ='PegaGadget'  data-pega-action ='display'  data-pega-action-param-harnessname ='MashupPartnerSiteReview'  data-pega-action-param-classname ='DLL-Data-Partner'  data-pega-action-param-model ='pyDefault'  data-pega-action-param-readonly ='true'  data-pega-isdeferloaded ='false'  data-pega-applicationname ='Unified'  data-pega-threadname ='TestPartnerSiteDetails'  data-pega-channelID ='MASH'  data-pega-resizetype ='stretch'  data-pega-url =url data-pega-action-param-parameters ='{"pzSkinName":"Program","pyMashupSkeletonName":"pyDefaultMashupSkeleton","PartnerID":<%=tools.findPage("pxRequestor").getProperty(".pyUserIdentifier").getStringValue()%>}' ></div>