Microsoft to retire Microsoft 365 Companion apps in December
BLUF
Microsoft will sunset three M365 companion apps on December 16, mandating their removal from managed environments.
NEWS
The tech giant announced the retirement of the Calendar, People, and Files apps effective December 16, 2026. Administrators have been instructed to proactively remove these applications from all managed devices prior to the shutdown date to prevent functionality loss.
Why I Care
Failure to remove these apps may result in broken shortcuts or unexpected errors for end-users relying on them for productivity tasks, disrupting workflow and potentially cluttering managed device images with unsupported software.
Next Steps
IT administrators should inventory devices for the Calendar, People, and Files apps and deploy removal scripts or policies before December 16 to ensure a smooth transition to native M365 functionality.
Source: BleepingComputer ·