Short answer: a member who hasn't been in for 14 days is the cheapest retention problem you will ever solve; at 30 days it is usually too late. The list reads from your membership software; the message is drafted; a person sends it.
What to send
Not a discount. A personal line from the instructor they usually see, naming a class this week. Three messages over a month, then stop.
The other signals
Failed direct debits (a card expiry, not a cancellation, if you catch it in a day). Memberships expiring this month. Trial members who haven't booked a second class. Class fill by time slot, so the 6am and the 6pm aren't guessed.
Full Fitness and wellness guide · What we build for fitness and wellness · Get a price
Written by Christian Stewart, Stewart Systems, Wollongong. Published 2026-09-29. Records and flags, not legal, WHS or insurance advice; rules change, check the regulator for the current one.