Microsoft 365 Message Center item MC1265767

MC1265767 - (Updated) Copilot Cowork now available in Frontier

Copilot Cowork is now available in Frontier for Microsoft 365 Copilot (Premium) users, enabling multi-step task orchestration across apps with user approval and progress tracking. It requires Frontier enrollment, Microsoft-built agents, and Anthropic as a subprocessor, with EU-specific data boundary controls. No admin action needed.

Message Center ID: MC1265767
Category: plan For Change
Severity: normal
Services: Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat
Tags: Updated message, New feature, User impact
Published: 2026-03-30
Last updated: 2026-04-15
Expires: 2026-06-30

Updated April 15, 2026: We have updated the content. Thank you for your patience. [Introduction] Copilot Cowork is now available in Frontier. Copilot Cowork enables users to orchestrate complex, multi-step work across Microsoft 365 without switching between apps. Copilot Cowork moves beyond answering questions to turning intent into execution by automatically generating plans, coordinating work across emails, meetings, messages, files, and data, and carrying tasks forward with visible progress and user control. This update reflects customer feedback to reduce manual coordination for real work while maintaining enterprise-grade security, privacy, and controls. Learn more on our blog: Powering Frontier Transformation with Copilot and agents.Screenshot: The Copilot Cowork interface in Microsoft 365 Copilot [When this will happen:] Copilot Cowork is now available in Frontier. General availability will be communicated at a later date.[How this affects your organization:] Who is affected: Users with a Microsoft 365 Copilot (Premium) license Users enabled for Frontier  English language only Prerequisites and controls: The tenant must be enrolled in the Frontier program. Microsoft‑built agents must be enabled.Anthropic must be enabled as a subprocessor (default: on).For tenants based in the European Union (EU), Anthropic as a subprocessor is off by default due to EU Data Boundary requirements and must be explicitly enabled.If anthropic is off, users may still see Cowork but be unable to use it.Admins must be enrolled in Frontier to see Cowork in Agent Inventory.What will happen: Users can install Copilot Cowork from the Agent Store in the Microsoft 365 Copilot app and pin it to the left rail. Users can describe an outcome in natural language, and Copilot Cowork will: Automatically generate a multi-step plan grounded in the user’s Microsoft 365 context Coordinate tasks across Microsoft 365 apps such as Word, PowerPoint, Outlook, and others Continue work overtime with visible checkpoints and progress tracking Copilot Cowork proposes actions and requires explicit user approval before acting on tasks such as: Sending emails or Teams messages Scheduling, declining, or rescheduling meetings Editing or moving files Users can pause, adjust, or stop execution at any time and return later to review progress. For eligible tenants, the experience is enabled by default and respects existing Microsoft 365 permissions and policies, unless restricted by EU Data Boundary settings. [What you can do to prepare:] No admin action is required.Learn more:Copilot Cowork: Now Available in Frontier | Microsoft LearnAnthropic as a subprocessor for Microsoft Online Services | Microsoft Learn Opt-in to use Anthropic's models | Microsoft LearnAgent settings in Microsoft 365 admin center | Microsoft Learn [Compliance considerations:] Compliance question Explanation Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data? Copilot Cowork introduces a new Microsoft-built agent that orchestrates multi-step work across Microsoft 365 services using existing customer data, while requiring explicit user approval before taking actions. Does the change provide end users any new way of interacting with generative AI? Users can describe an intended outcome in natural language and have Copilot Cowork generate and execute a multi-step plan with progress tracking. Does the change add any integration to 3rd party software products? Anthropic is used as a subprocessor to support Copilot Cowork capabilities and is enabled by default. Does the change include an admin control? Availability is controlled through Frontier enrollment, agent enablement settings, subprocessor configuration, and EU Data Boundary defaults. Does the change allow a user to enable and disable the feature themselves? Users can install Copilot Cowork from the Agent Store and can pause, adjust, or stop execution at any time.