This sample profile shows an alert profile that will alert the student at 15 minutes "after" the scheduled arrival time (15) if the student has not yet signed back into an On Campus location.
The Time setting is an offset time form the trigger time. For Leave Alerts the trigger times may be either the Departure time or the Return time (see Step 2). You can set time offsets that are before (negative time) or after (positive time) the trigger time for the leave.
Each alert profile may have multiple Alert profile items. This allows you to continue to remind people or to escalate the alert to additional people at different times (ie: different offset times for each profile item)