SharePoint Hybrid is a configuration and feature set that enables users in SharePoint on-premises environments to take advantage of SharePoint Online functionality. It also enables users to access content in both the SharePoint Online and on-premises environments from a single place.
With hybrid, productivity services in SharePoint Online can be integrated with on-premises SharePoint Server to provide unified functionality and access to data. For enterprises that want to gradually move their existing on-premises SharePoint Server services to the cloud, SharePoint Server hybrid provides a staged migration path.
