Replatforming an ecommerce application involves migrating from a legacy system to a modern, API-first, composable architecture platform. This can improve performance, scalability, custom solutions, and content creation capabilities. A replatforming project should be approached with caution, as it can be time-consuming and laborious. Considering using a digital agency or paid professional services from the platform vendor can help speed up the process and ensure success. Assembling a team early on, defining KPIs, testing the content model, and implementing a phased rollout approach can also increase the chances of a successful replatforming project. By following these steps, ecommerce businesses can modernize their online stores, meet customer needs, and improve conversions.