Microsoft 365 (Office 365) packaged under 21Vianet includes Exchange Online, SharePoint, Teams, OneDrive, and Office apps, hosted in China through a partner-operated instance.

This China‑specific version is hosted entirely within China, meeting compliance and localization standards. Some global features (e.g., enterprise Teams integrations, certain compliance tools) remain unavailable as Microsoft phases them in. It supports Chinese localization, regulatory compliance, and separate login credentials from global Microsoft 365.

The information regarding service availability in China is provided for general reference purposes only. Due to the dynamic nature of network conditions and regulatory environments, the actual accessibility of these services may vary over time and by location. Users are advised to verify the current status independently.