Getting list of unassigned requests via API

Getting list of unassigned requests via API

Hi,

I'm trying to get a list of requests via the rest API:

https://servicedesk.xxxxx.com/sdpapi/request/?OPERATION_NAME=GET_REQUEST&TECHNICIAN_KEY=xxxxxxx

This is giving me the following error though:

 
  <operation name="GET">
 

 
     <result>
    
      <status> 
      Failed 
      </status>
     
        <message>
       
        Error when parsing input XML elements - null - null
       
        </message>
       
     </result>

 
  </operation>
 

 
 Does anyone know what I need to enter to get a list of unassigned requests?