Customer Success is a new discipline that brings together the business functions involved in post-sales processes in Software as a Service (SaaS) companies. The growth of a SaaS applications is driving an emphasis on product adoption, usage, and churn - because it’s easier than ever for the customers to switch services at the time of subscription renewal. Your best bet to avoid this is to keep your customers happy with your product. If they’re happy they’ll use it, renew it, buy additional products and provide insightful feedback. After all, it’s customers who keep the companies in business.