Copilot Cowork has officially landed in Frontier for Microsoft 365 Copilot (Premium) users. This release brings a more collaborative way for Copilot to work across apps, handling multi‑step tasks while keeping you in control.

With Copilot Cowork, tasks can span multiple Microsoft 365 apps, with clear user approvals along the way and built‑in progress tracking so you always know what’s happening. It’s designed to feel less like a single command and more like a coworker helping you get things done.

To use Copilot Cowork, users need to be enrolled in Frontier. It currently works with Microsoft‑built agents and uses Anthropic as a subprocessor. For customers in the EU, data boundary controls are in place to help meet regional compliance requirements.

The good news? No admin action is required to get started eligible users can simply explore the experience once Frontier is enabled.

When is this happening?

Copilot Cowork is already rolling out and is available today in Frontier.
General availability for all customers will be announced later—Microsoft will share details once it’s ready for broader release.

What this means for your organization

This update introduces a new way for Copilot to work alongside users—taking on longer, multi‑step tasks across Microsoft 365 apps while keeping people firmly in control. Think of it as Copilot stepping up from quick help to ongoing collaboration.

Who can use Copilot Cowork?

Copilot Cowork is available to:

• Users with a Microsoft 365 Copilot (Premium) license
• Users who are enabled for Frontier
• English‑language users (for now)

Prerequisites and controls to be aware of

Before Copilot Cowork can be used, a few requirements need to be in place:

• The tenant must be enrolled in the Frontier program
• Microsoft‑built agents must be enabled
• Anthropic must be enabled as a subprocessor (this is on by default)

For organizations based in the European Union (EU):

• Anthropic is turned off by default to meet EU Data Boundary requirements
• It must be explicitly enabled for Copilot Cowork to function
• If Anthropic remains off, users may see Copilot Cowork listed but won’t be able to use it

Admins also need to be enrolled in Frontier to see Copilot Cowork listed in the Agent Inventory.

What users can expect

Once available, users can:

• Install Copilot Cowork directly from the Agent Store in the Microsoft 365 Copilot app
• Pin it to the left rail for easy access

From there, users can simply describe what they want to achieve—in plain, natural language—and Copilot Cowork will:

• Create a multi‑step plan based on the user’s Microsoft 365 context
• Coordinate work across apps like Word, PowerPoint, Outlook, and more
• Continue working over time, with clear checkpoints and progress tracking

Importantly, Copilot Cowork never acts without permission. It will always propose actions first and wait for explicit user approval before doing things like:

• Sending emails or Teams messages
• Scheduling, declining, or rescheduling meetings
• Editing, moving, or organizing files

Users stay in control at all times—they can pause, adjust, or stop execution whenever they want, and come back later to review progress.

Default behavior and governance

For eligible tenants, Copilot Cowork is enabled by default and respects existing Microsoft 365 permissions and policies. The only exception is where EU Data Boundary settings apply, which may limit functionality unless explicitly configured.