Synchronizing endpoint data stores having disparate schemas

Synchronizing data between multiple endpoint data stores that have disparate schemas is accomplished in a manner that reduces complexity. Each endpoint data store has an associated local schema that orders data into one or more fields. A synchronization server is disposed between the endpoints and keeps the multiple endpoints synchronized without the endpoints having to understand the various local schemas. A virtual schema is generated based on a set-intersection of the local schemas. The virtual schema maps a field in one local schema to a field in another local schema. Data is synchronized between the endpoint data stores using the virtual schema.