Analyze a hypothetical monolithic e-commerce platform where the UI, Inventory, Payment, and Shipping logic are tightly coupled in a single codebase. Create a comprehensive step-by-step refactoring strategy to migrate this into microservices. Address how you would identify bounded contexts, manage data integrity during the transition (strangler fig pattern), handle inter-service communication, and ensure that the system remains operational throughout the process. Discuss the potential pitfalls and how to mitigate service discovery and configuration management issues.