Brief Description
Hybrid search lets users search for files and documents across on-premise SharePoint Server and Office 365 at the same time. Depending on set up of hybrid search, applications can have only on-premises users search for content stored in Office 365, only online users search for content stored in SharePoint Server, or both user groups search for content stored in the other environment. A unified index for on-premise and cloud content featuring 'one search to rule them all' philosophy, Support for Office Graph / Delve experiences on premises and Support for Search as a Service reducing the search crawl footprint - are the key differentiating offerings of Hybrid Search.
