A loyalty card through SMS
A paper loyalty card gets lost. A programme running on the phone number does not — and you immediately know who your regular customers are.
How it works
The number is the card. At every visit the counter goes up; at a threshold the customer gets a message saying something is waiting for them.
What it returns
Not only returning customers, but above all insight. You see who comes often and who dropped off — the latter being the basis for reactivation.
Keep it simple
One rule anybody can explain at the till. Programmes with tiers and expiring points are not understood, and therefore not used.
Get the consent right from the start
At sign-up, say what the number is for and how to opt out. Anyone who later decides to send promotions there must have announced that beforehand.
Message sparingly
When the threshold is reached and when it expires. Not a monthly status update.