Composable commerce is a flexible and iterative approach to building and evolving ecommerce capabilities, helping businesses adapt to changing customer expectations. It involves using microservices, API-centric, cloud-native, and headless technologies to create a scalable and dynamic web infrastructure. This approach allows companies to move fast, respond quickly to changes in the market, and adopt best-of-breed solutions without being locked into traditional technology adoptions. By starting small, testing, and iterating, businesses can leverage composable commerce to improve customer relationships, personalization, and overall business capabilities.