Office 365 service descriptions

Microsoft Office 365 is a cloud-based service that is designed to help meet your organization's needs for robust security, reliability, and user productivity.

The topics in this library provide detailed descriptions of the services and features that are available with Office 365. To compare features across plans, see Compare Office 365 for Business plans or the relevant service description in the list below.

To search for support articles and information, see Office Support.


If you're looking for the service description comparison spreadsheet, it has been retired. The product feature availability tables on each service description page have been updated to better help you choose the version of Office 365 that suits your needs.

Microsoft offers the FastTrack Center Benefit for Office 365 for eligible services in eligible plans. The benefit lets you work remotely with Microsoft specialists to get your Office 365 environment ready for use. For more information, see FastTrack Center Benefit for Office 365.

To get started, see the following service descriptions:


1 Includes availability of suite features, such as Office Delve, Microsoft MyAnalytics, Microsoft Sway, and Microsoft Teams.


© 2018 Microsoft Corporation. All rights reserved. Microsoft, Office 365, and other product and service names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information provided herein is for informational purposes only and represents the current view of Microsoft Corporation as of the latest publication or revision date of this document. It is not intended to be a service contract, and does not commit Microsoft or the customer to any features, capabilities or responsibilities mentioned herein. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS DOCUMENT.