If you run a subscription business, you’ve undoubtedly encountered the term churn—customer attrition. Churn can be a major headache because acquiring new customers costs more in terms of time and money compared to retaining existing ones. (You can read a previous article where I looked into the cost difference between acquiring new customers and renewing existing ones.) In this article, you’ll learn what churn actually is, why it happens, and how you can keep your churn rate down.