The Universal Windows Platform (UWP) allows you to build a single app using one SDK, deploying to one store, creating one app package that can run across many different Windows 10 devices. But all this convergence is useless unless you also create a connected user experience so that whichever of their devices they pick up, your user can get to their data and continue a task on one device that they started on another. And for that you need to have some kind of mobile backend in the cloud. The UWP APIs give you some help here with the roaming folder automatically syncing data across a user’s devices but that falls short of a general purpose data syncing engine. You could also use OneDrive as a mechanism to store data and share across devices. But for a fully functional solution with support for authentication, offline operation, data sync with conflict detection and push notifications you need Azure App Service Mobile Apps. In this session, we will look at all these techniques for sharing state through the cloud, with particular emphasis on building a mobile backend in Azure App Service Mobile Apps.