If a task fails in QlikSense, we don't get any notifications because there is no configuration option as such. Someone have to go and check for all failed tasks during the start of the day and fix them if any. Most of the times users tell us that their dashboard is not updated when they are expecting to see the latest data. Just like Qlikview, admins must get notifications so that we can be proactive rather than reactive when the job fails. Hope to see this soon!