An update session can also be supplied with ..?updateSession=<SessionID>
This must be a POST request and the data in the body must contain XML of the following structure.
<any> <DefinitionId>id</DefinitionId><DefinitionXml>..</DefinitionXml> Where DefinitionXml embeds: <SAProperty SAPrpName="name" SAPrpValue="value" For reference-type properties, either of the following can be used while supplying an ID number in the SAPrpValue: SAPrpModification="AddDDID" Or SAPrpModification="RemoveDDID" > </SAProperty> </any>