I am trying to use getLeadChanges API to get Leads activities. I am using WSDL and AXIS library to generate my SOAP request. WSDL has parameter in StartPosition called "latestCreateAT". I couldn't find this parameter in documentation, but it is present in WSDL. can you please check is this mistke from Marketo side. Also can you tell us know, if we keep this parameter for our request or just remove it.