Schematized data roaming is described herein. In one or more implementations, a cloud service includes a cloud data store that is configured to store schematized data comprising user preferences and settings of client devices associated with a user profile. The schematized data includes a schema that is shared across the client devices and globally defined by the cloud service which enables the user preferences and setting to be re-used across multiple devices and device classes, including devices that the user has not previously interacted with before. The schematized data includes attributes, for each schematized data structure, which provide rules for processing or storing the corresponding schematized data structure in the cloud data store. Such attributes may include a conflict resolution policy, an upload policy, or a partition policy.