MC1259775: Power Platform admin center – New alert metrics available in the Monitor section
We are announcing new metrics available for alerts in the Monitor section
Microsoft 365 Message Center
An archive of Message Center updates - curated and preserved for when Microsoft changes things faster than you can say "rolling out." Find the latest and past Message Center posts right here. Updated daily at 1am (UK time).
MC1259433: Power Apps - Use Microsoft 365 Copilot in model-driven apps
We are announcing the ability to use Microsoft 365 Copilot in model-driven
MC1259418: Power Automate - Share Process license capacity across workflows
We are announcing the ability to share Process license capacity across workflows
MC1258087: Take Action: Out-of-band update released to address an issue signing in to apps with a Microsoft account
🚨Major Update: This post contains a significant change that may impact your
MC1258000: Microsoft Purview: Data Security Investigations – analyze files tied to endpoint DLP alerts
Microsoft Purview’s Data Security Investigations will include endpoint Data Loss Prevention (DLP) events as a queryable source, enabling admins to analyze related files automatically. Rolling out April–May 2026, this feature enhances investigation efficiency using AI tools without user impact or ...
MC1254512: (Updated) Second deployment phase for Kerberos RC4 hardening begins with the April 2026 Windows security update
Updated March 20, 2026: Added additional guidance for devices using Azure Files
MC1257218: Action Required: Update active Exchange Web Services Applications
🚨Major Update: This post contains a significant change that may impact your
MC1256307: Microsoft Teams: Recently used emojis sync across devices
Microsoft Teams will sync recently used emojis and reactions across all devices by mid-May 2026, providing a consistent experience. The feature is enabled by default, affects all users, requires no action, and does not impact data storage, compliance, or messaging policies.
MC1256306: Microsoft 365 Copilot: Planner Agent available in Frontier
Microsoft 365 Copilot's Planner Agent is now available in Frontier, enabling users with Copilot licenses to create, update, and manage tasks and plans directly in Copilot chat. It offers intelligent insights, interactive task cards, and natural language prompts. Available now in Frontier; public ...
MC1256301: Microsoft Teams for Mac: Improved access to account management
Microsoft Teams for macOS will add new account management access points in the app menu and Dock icon menu by late April 2026. Existing policies and permissions remain unchanged. The update is automatic and enabled by default, requiring no user action. Notify helpdesk and update documentation if ...
MC1256117: Frontier Admin Control: Single enrollment across all apps, platforms, and agents
Frontier Admin Control will unify enrollment across all Microsoft 365 apps, platforms, and agents starting early April 2026. Only users enabled in the control can access Frontier features. No action is required, but admins may review enrollment and update documentation as needed.
MC1256040: Designer tools in Copilot
Designer tools in Copilot, rolling out from mid-February to early April 2026, provide users with enhanced controls to refine prompts and adjust visuals in image creation across Microsoft 365. Enabled by default, no admin changes are needed, and existing policies remain in effect.