Forrester recently surveyed 99 marketers about their loyalty strategies to understand how they manage and measure customer loyalty and what challenges get in the way of success. This report contains benchmarks for B2C marketing professionals working on increasing customer loyalty and provides an overview of how companies across industries execute on loyalty strategy. This is an update of a previously published report; Forrester reviews and updates it periodically for continued relevance and accuracy; we substantially revised this edition to factor in updated tools, ideas, and data.