Use loyalty program as an incentive for your customer to register for membership.
Able to communicate with the customers through email or DM etc.
In order to attract customers, not only you can use loyalty points system but also you can award coupon, double the points, and send guidance of products and notification of their loyalty points expiration date etc.
By linking customer’s information with their purchase history, store (MD, management, marketing, and sales department) can get the proper CRM analyses' results.
Analyses indicate your customer’s behavior and their taste for products. This will help you target the right customer and approach them with right products to communicate and improve customer LTV.