CDI2 is a customer data infrastructure and insights solution tailored for ecommerce businesses that provide companies with ground truth data systems to help with data-driven decisions. Key features include user-matching, individual session-level cost assignment, data-driven attribution, and reverse extract, transform, and load (ETL) usage. CDI2 combines data from various sources including event tracking, customer data platforms (CDPs), and marketing channels, providing a complete view of customer interactions and performance. For eCommerce businesses, it enables prospective analysis for acquisition, retention, and offer optimization.