Summary
On July 9, 2026 Anthropic extended Claude's Microsoft 365 connector beyond search: with write tools enabled, Claude can draft, send, and organize email, manage calendar events, update mailbox settings, and create and update files in OneDrive and SharePoint.
What changed
Anthropic's July 9, 2026 update gave the Claude Microsoft 365 connector write capabilities. Previously read and search only, it can now draft, send, and organize email, manage calendar events, change mailbox settings, and create and update OneDrive and SharePoint files.
Why it matters
Read-only connectors make Claude an analyst; write tools make it an operator inside the systems people actually work in. Letting Claude take actions across Microsoft 365 turns the assistant into an agent that completes workflows end-to-end, and raises the governance stakes — write access to corporate email and files is where enterprises weigh permissions, auditing, and approval controls most carefully.
Evidence excerpt
The Microsoft 365 connector now goes beyond search. With write tools enabled, Claude can draft, send, and organize email, manage calendar events, update mailbox settings, and create and update files in OneDrive and SharePoint.