Issue with one of my request object.

Our Xsd looks like this

 
   
     
       
       
       
         
         
       
     
   
 


What happened in my request object i have an option of putting either DeviceProfileId or UserId why does soapUI always picks up the element that appears first. Like in my case if i have DeviceProfileId above UserId and i provide UserId it completely ignore UserId and take the empty DeviceProfileId value that causes my test case failure. However if i swap the sequence of elements it works fine or I completely remove the element that is empty. Can you comment on that.

Thanks