As customer success (CS) matures, it risks becoming the catchall department for handling customer issues without a set of defining principles. The CS function must demonstrate its impact to establish itself as a revenue generator. This report outlines how five core practices — making value realization the purpose of CS, becoming operationally proficient, engaging customers to deliver valuable experiences, fostering an empathetic team culture, and demonstrating definitive business returns — can help CS leaders shape a mature, high-performing function by better setting their strategy, evaluating their current practices, and orienting teams toward delivering value for customers.