We have been using JIRA Service Desk since the first release and are now running 2.3.5. When we first started using Service Desk we imported tickets via CSV with their created and resolved dates set correctly from our original issue tracking system. We have only recently become interested in SLAs but are facing a problem with these imported tickets.
Essentially the SLA timers keep running on all imported tickets, including those which were imported as Resolved. We have several thousand imported tickets and so it is significantly skewing our statistics.
I believe our problem is that a SLA timer will only occur on an event, such as "Entered Status: Resolved". These events haven't happened for imported tickets, how can we fix this so that our SLAs become meaningful?