The document introduces the SAP HANA Big Customer App, which is designed to help companies uncover new customer opportunities using big data. It allows companies to blend private and public customer data to generate insights, perform both historical and predictive analytics, group customers, recommend products, forecast sales, reduce churn, and more, all in a simple and fast manner without needing to hire additional resources. The app provides features like discovering nearby customers, checking churn rates, and exploring top products.