@headsandtails1962 To configure a Pega UI while leveraging an existing Pega workflow in a headless setup, you can use the Pega Constellation (React-based) or a custom UI built with Pega APIs. Start by identifying the workflows and data models you want to reuse. Expose these workflows as REST APIs using Pega’s API capabilities, ensuring they support operations like creating, updating, and fetching cases or assignments. Then, design your new Pega UI or front-end application, which can still utilize Pega sections and harness Pega's DX API for seamless integration. Use case types, data pages, and decision rules to drive the back-end logic, while the front-end focuses on providing a customized user experience. This approach allows you to reuse existing workflows without altering them while giving flexibility to build a new UI layer tailored to user needs.