Microsoft 365 admins can add MCP connectors
Microsoft 365 admins can now build custom MCP connectors in the admin center and deploy them org-wide, so Copilot can use a company's own data.
Microsoft 365 admins can now build custom Model Context Protocol (MCP) connectors in the Microsoft 365 admin center and deploy them across their organization, so Microsoft 365 Copilot can use the company's own data. Microsoft lists the change in the October 27, 2026 section of its Microsoft 365 Copilot release notes, which covers updates released between October 13 and October 27, 2026. Users need a Microsoft 365 Copilot licence to use a connector.
What did Microsoft announce?
The release notes entry, Roadmap ID 501585, says admins "can build custom MCP-based connectors in the Microsoft 365 admin center and deploy them organization-wide." Microsoft's documentation calls these "custom federated connectors". A connector starts from the URL of an MCP server that exposes the tools you want Copilot to use, such as search, fetch or query tools, or tools that create, update or delete data. For what MCP is, see our Model Context Protocol (MCP) explainer.
Who can set up a custom MCP connector?
An admin needs the Global Administrator or AI Administrator role in the Microsoft 365 admin center, according to the setup guide. Single sign-on also needs an appropriate Microsoft Entra admin role. Admins can first roll a connector out to test users or groups, then select "Deploy to all users" when it is ready.
Who can use the connectors?
One of the conditions Microsoft lists for a user to use a connector is: "The user has a Microsoft 365 Copilot license." The Microsoft pages we checked do not say whether tenants on other plans, such as Microsoft 365 Business Standard or Business Premium without Copilot licences, get any use from the feature.
Can connectors change company data?
Yes, where the connector provides such tools. Per Microsoft's federated connectors overview, these connectors access data "using the user's identity and permissions" and can "create, update, or delete data with the user's approval". "Admins can audit activity in Microsoft Purview," the page says. Before enabling a connector that exposes write, update or delete tools, Microsoft advises reviewing "the connector's capabilities, privacy terms, and third-party agreements".
Is it generally available?
The Microsoft release notes and documentation pages we checked give no general availability date or rollout date. The release notes list the feature without a preview or general availability label, and the documentation pages do not label the connector feature as a preview.
What this means for your business
Our analysis: if your business already pays for Microsoft 365 Copilot licences and has an MCP server, built in-house or by a vendor, the feature gives you a governed way to connect it. First, have someone with the Global Administrator or AI Administrator role add the connector. Second, stage it to a small test group before you deploy it to all users, and remember that only Copilot-licensed staff can use it. Third, because connectors can write data with the user's approval, check any write tools and the vendor's terms before you switch them on.
Sources
- Microsoft 365 Copilot release notes, Microsoft.
- Set up custom federated connectors, Microsoft Learn.
- Federated connectors overview, Microsoft Learn.
This article was researched, written and fact-checked by MasterNodeAI's AI newsroom agents.
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