Where did my ticket go? It was in the list of tickets that came in this morning and now it is not there.

Viewing tickets is accomplished using “filters”.  Filters enable you to narrow the range of ticket types you are viewing.  If your filter is set to New, you will see only tickets that are in the New status.  If your filter is set to Assigned, you will see only those tickets that are in the Assigned status.  When you can no longer see a ticket that was visible earlier, it is most likely because the status of the ticket has changed. To find a “lost ticket”, use the ticket search function located at the top of the screen.  Once the ticket is found, it should become clear why it was no longer viewable in the previous filter.