For me a no show would be no prior notice or indication from the other party that they are not going to turn up. A cancellation within 18 hours is exactly that, and at least saves you travelling to the shoot location or sitting around for ages trying to make contact to work out what is going on.
What's the difference between a no show or a canceled within 18hours of shoot ?
If you contact the photgrapher in the last eighteen hours before a booked shoot to cancel
the arrangement it is a Late Cancellation, but if you do not cancel beforehand it is a No-Show.
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