Marketers have more customer data than ever before, but struggle to activate cross-channel personalized experiences due to lack of access to a unified view of their customers. The traditional Customer Data Platform (CDP) model has limitations, such as rigid data models and redundancies across tools. A Composable Customer Data Platform, built on the Snowflake Data Cloud, leverages existing data infrastructure to power marketing personalization and customer engagement, offering completeness, flexibility, cost savings, faster time-to-value, consistent metrics, and improved privacy and security compared to traditional CDPs. Companies like Canva, Zip, and HOVER have adopted this approach to drive business impact with their data, and the future of MarTech is composable.