No-show
A no-show is a scheduled shift that a person neither worked nor reported. Two conditions hold together: the shift was assigned, and no notice of any kind arrived. An absence that was called in is not a no-show, however late the call came.
A no-show is the only absence category that is an emergency by definition. Nobody knew until the shift started. Nothing could be arranged in advance.
The first response is not administrative. Find out whether the person is alright. A reliable colleague who simply does not appear is more often a problem happening to them than a choice.
Only then does the cover problem get solved, by whoever can be reached. Recording the event comes last.
A repeated pattern is a different matter from a single morning. One unexplained shift is an incident. Three in a quarter, from somebody previously reliable, is usually a situation nobody has asked about. Neither is solved by a stricter form.
Where this shows up in PeopleMuster
PeopleMuster shows a scheduled assignment with no matching attendance record for the day. That gap is what a supervisor needs to spot the situation on the morning it happens.
Questions people ask
What is the difference between a no-show and an absence?
Notice. An absence was reported. A no-show was not, so nobody could act until the shift had already started uncovered.
How long before an absence becomes a no-show?
Most teams use the shift start plus a short window, since somebody stuck in traffic is late rather than absent. Set the window so it is applied evenly.
Should a no-show be recorded even after the person explains?
Record what happened, including the explanation. Deleting it removes the operational fact that a shift ran uncovered, which is worth keeping.