At Intercom, a company-wide research project aimed to understand and optimize the customer journey to deliver better experiences and long-term success. The project led to the development of the Customer Milestones Framework, a data-driven, actionable plan to drive deeper usage and engagement. The framework identifies four distinct customer milestones: Setup, Activation, Utilization, and Maturity. Each milestone is defined by specific thresholds of meaningful product usage relative to the customer's size or growth stage. The framework has been operationalized across various teams, including R&D, Sales, Marketing, and Customer Support, with initiatives such as team activation, tailored engagement, data-driven approaches, and content creation. The project has given Intercom a unified structure and language, enabling the company to make informed decisions on R&D investment, support interventions, and sales strategies to drive customer value and retention.