Claude just became significantly more useful for anyone working inside the Microsoft ecosystem. On July 7, 2026, Anthropic expanded its Microsoft 365 connector with full write tools — meaning Claude can now do far more than just search and read your documents.
It can draft and send emails, create and update calendar events, manage your mailbox settings, and create or update files directly in OneDrive and SharePoint.
What The Microsoft 365 Connector Now Does
The Microsoft 365 connector has been available in Claude Cowork for some time, but it was previously limited to read and search operations. You could ask Claude to find a specific email, summarise a document, or pull up a calendar event — but it could not act on your behalf. That has now changed entirely with the write tools expansion.
Here is what Claude can now do inside Microsoft 365: draft and send emails directly from a Claude conversation, create new calendar events and update existing ones, organise your mailbox by moving, labelling, or archiving messages, and create new files or update existing documents in OneDrive and SharePoint.
The only part of Microsoft 365 that remains read-only for now is Microsoft Teams, which supports reading and searching but not yet writing or sending messages.
How To Enable It
The write tools are not enabled by default. A Microsoft Entra administrator at your organisation needs to consent to the updated permission set first, and then an admin on your Claude Team or Enterprise plan needs to turn write tools on for your organisation.
Individual users cannot enable this themselves — it is an organisational permission controlled at the admin level.
This setup is intentional. Giving an AI the ability to send emails and create calendar events on behalf of real users is a significant trust decision, and Anthropic has structured the permission flow accordingly so that organisations can make a deliberate, informed choice before enabling it.
Why This Is A Big Deal
For knowledge workers, the combination of Claude’s reasoning capabilities and write access to Microsoft 365 creates a genuinely powerful workflow.
You can now have a single Claude conversation where you ask it to research a topic, draft a summary document, save it to SharePoint, and send it to a colleague — all without switching apps.
Tasks that previously required four separate tools and manual copy-pasting can now happen inside one conversation thread.
This also pairs naturally with the Dispatch feature covered in our earlier story, which lets you assign Claude tasks from your phone. You could now theoretically be in a meeting, message Claude from your phone, and have it draft and send a follow-up email to a client before you even leave the room.
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