POST /GroupManagementService HTTP/1.1 Host: www.personmanagementserver.com Content-Type: text/xml; charset="utf-8" Content-Length: nnnn SOAPAction: "http://www.imsglobal.org/soap/gms/changeGroupsIdentifier" AB12345e4t6789 oldsource:oldidentifierG1 oldsource:oldidentifierG100 oldsource:oldidentifierG2 oldsource:oldidentifierG200