Hi list,<div><br></div><div>Can someone help me finding tickets that have no service assigned? I&#39;d need a &quot;negate search&quot; or something like that. If it&#39;s done using a URL, I&#39;m happy as well. I think I saw a query regarding something like this before, but I can&#39;t find it. 
</div><div><br></div><div>Thanks for any help!</div><div><br></div><div>Regards,</div><div>Arthur</div>