SLA timer calculates correctly but notifications are sent prior to reaching the expected percentageIssue SLA timer is sending SLA 60%, 80% notifications though it is not actually reached that percentage.CauseIssue was caused by incorrect sla schedule definitions.I identified that customer had defined a Schedule as belowSchedule: 6:30 pm Sunday to 8 pm Friday Eastern TimeThe schedule has only a single schedule entryFriday-Sunday: The type was set to excluded.This resulted in in the Schedule having no active entries.So for all the Task Slas using this Schedule, when the Task Sla is attached, it does not calculate the business times correctly.You would see that all the business timings are 0.However the expected behavior is that when the Task SLA attaches out of schedule, the business time left is populated.This caused the Task SLA workflow to proceed and complete the 60% elapsed percentage.ResolutionIn your instance, ensure you have an active entry in the schedule. I changed the type on the schedule entry below from 'excluded' to 'NONE'. You now have an active entry in the schedule.Friday-Sunday: /nav_to.do?uri=cmn_schedule_span.do?sys_id=284df901db10670040a089584b96190aThe issue is now fixed.