AI SUMMARY Quick Answer Effective ecommerce customer retention strategies start with understanding why customers do not return. Improve product guidance, delivery updates, returns, complaint handling, and reordering before relying on discounts. Use timely reminders, relevant recommendations, loyalty rewards, and subscriptions where suitable. Measure repeat purchases over consistent periods, compare test groups, and account for costs to identify improvements that support profitable retention. Your store may simply have failed to make replenishment easy or give that customer a useful reason to return.