The Expedia Group has successfully implemented a GraphQL-based data graph with Apollo to resolve technical debt and improve development efficiency. Managing customer experiences across multiple brands and websites was already challenging, but the complexity increased exponentially with the rise of native mobile clients. By building a single organization-wide data graph, they were able to accelerate development and free up resources for experimentation and innovation, ultimately leading to better customer experiences. The transformational results have enabled teams to try out new ideas across all clients without client-specific changes, speeding up design and learning processes.