Customer churn means when customers stop buying from a business or cancel a service. Digital marketing can help reduce this by keeping customers engaged even after the first purchase. Sending useful emails, sharing product tips, offering loyalty rewards, or simply staying in touch through social media keeps a customer connected to the brand. When people feel like a business cares about them beyond the sale, they are less likely to leave. Personalized messages that speak to where a customer is in their journey also help a lot.