MC1551148 - [Outlook for iOS and Android] Copilot Chat in Outlook UX improvements

Microsoft 365 Message Center announcement MC1551148.

MS Message Center's Summary

Microsoft is refreshing the Copilot Chat interface in Outlook for iOS and Android to provide a consistent design across Microsoft 365 applications. The update brings improvements to chat layouts, prompts, and navigation, while relocating temporary chat options to the more menu. Rollout begins in mid December 2026 and completes by late January 2027. Administrators should review internal documentation to prepare support staff for these visual changes.

Administrator impact
No direct administrator action is required.
End user impact
Users will experience a redesigned Copilot Chat interface with updated navigation and relocated temporary chat options on their mobile devices.
Importance
2/10: This is a standard feature update that modifies the mobile user interface without affecting administrative controls or core functionality.

Microsoft Summary

Copilot Chat in Outlook for iOS and Android is being updated with a refreshed, consistent design across Microsoft 365 apps, improved chat interface, prompts, and navigation. Rollout starts mid-December 2026, completing by late January 2027. No admin action or compliance concerns are required.

Message Center ID
MC1551148
Category
stay Informed
Severity
normal
Services
Exchange Online
Tags
Feature update
Published
2026-11-13
Last updated
2026-11-13
Expires
2026-12-13

[What and Why:] Copilot Chat in Outlook on iOS and Android is getting updated! We are refreshing the Microsoft 365 Copilot Chat experience in Outlook mobile to deliver a more consistent and intuitive experience across Microsoft 365 apps, with improvements to the chat interface, suggested prompts, response presentation, and navigation between chat views - making it easier for users to interact with Copilot while staying in the context of their work in Outlook. [Rollout Schedule:] General Availability (Worldwide): We will begin rolling out on mid December 2026 and expect to complete by late January 2027. [Impact on Your Organization:] After this update, users accessing Copilot Chat in Outlook on iOS or Android will notice: Refreshed chat experience: A more consistent One Copilot design across Microsoft 365 apps, including updated suggested prompts, input box, and side navigation. Temporary Chat: Moved from the top-right corner to the (...) More options menu. Users can continue using Copilot for general conversations or within supported Outlook workflows. Existing Copilot capabilities and access controls remain unchanged. [Action Required/Recommendations:] No admin action is required. [Compliance considerations:] No compliance considerations identified. Review as appropriate for your organization.