Microsoft Copilot (Microsoft 365): Copilot Chat in Outlook expands to reason over inbox, calendar, and enterprise data

Summary

Copilot Chat in Outlook expanding to support reasoning over a user's entire inbox, calendar and other enterprise data for Microsoft 365 Copilot Chat users (without a Microsoft 365 Copilot license).

Status
Launched
General availability target
Jan 2026
Preview target
Not published
Products
Outlook, Microsoft Copilot (Microsoft 365)
Clouds
Worldwide (Standard Multi-Tenant)
Release phases
General Availability
Platforms
Android, Desktop, iOS, Mac, Web
Added to the roadmap
19 Nov 2025
Last changed
24 Apr 2026 · 5mo ago
recently changed
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