> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.mythos.new/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.mythos.new/_mcp/server.

# Microsoft 365

> Connect Outlook, OneDrive, Word, Excel, Teams, and SharePoint to Mythos through one Microsoft account.

Connect Microsoft 365 to use your organization's mail, calendars, workbooks, and files while building in Mythos. Choose the services you need and authorize them together with one Microsoft account.

Mythos can read the connected services. With **Ask before changes** selected, it asks for your approval before changing data; **Always allow** lets it make those changes without asking each time. Microsoft permissions still apply: connecting an account does not give it access to another person's private mailbox, workbook, or site.

## Available Microsoft services

### Outlook

Read mail and calendars; draft, send, reply to, or organize messages; create and update calendar events.

### OneDrive

Browse drives, folders, and file details; create folders; rename, move, copy, share, or delete items.

### Word

Check document details and retained version history; organize, copy, share, or delete Word files. Word supports file organization and previews, not reading or rewriting the text inside a document.

### Excel

Read existing worksheets, tables, charts, and cell ranges; update ranges and manage rows, columns, tables, charts, and worksheets.

### Teams

Find joined teams and visible channels; post a channel message or reply. Teams supports channel posting, not reading chat or channel message history.

### SharePoint

Read sites, lists, list items, library file details, and pages; manage list items and pages, organize library items, and share them.

For a published form that saves submissions to a workbook, use the separate [Microsoft Excel connection](/integrations/microsoft-excel).

## Examples to build

Use the service names in your prompt and describe the result you want. Include a workbook, folder, or site link when you have one.

| Example          | Prompt to try                                                                                                                                   |
| ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| Sales report     | “Read the Sales table in this Excel workbook. Build a dashboard that compares monthly revenue by region.”                                       |
| Meeting planner  | “Check my Outlook calendar for open times next week and help me prepare a booking page with those availability rules.”                          |
| File organizer   | “Find the Word documents in this OneDrive folder and show their names, last modified dates, and available version history in a document index.” |
| Team update      | “Prepare a concise release announcement for the Product channel in Teams. Show me the message before sending it.”                               |
| Request tracker  | “Use the Requests list on this SharePoint site to build an internal page with status filters and an item detail view.”                          |
| Mail triage      | “Review this Outlook folder and group messages by customer request. Help me design an inbox for those categories.”                              |
| Project handover | “Read the project list in SharePoint and the milestones workbook in Excel. Build a handover page showing owners and due dates.”                 |

The connected account is the account Mythos works with. This does not create Microsoft sign-in for every visitor to your app. Explain separately if the finished app needs each visitor's own Microsoft data.

## Connect Microsoft 365

### Before you start

You need a Microsoft account with access to the services and resources you want to use.

* **Excel, Teams, and SharePoint require a work or school account.** A personal Microsoft account cannot authorize these services through this connection.
* Excel workbooks must already exist as `.xlsx` files in OneDrive for Business or SharePoint. A workbook shared through Teams can work when it is stored in the connected organization's SharePoint or OneDrive.
* Your organization may require an administrator to approve the requested access. Microsoft service licenses and tenant policies continue to apply.

You do not need to create a Microsoft application or copy an API key.

### Add the connection

1. From the Mythos Dashboard, open **Connectors** and select **Microsoft 365**.
2. Enter a **Display name**, such as `Operations Microsoft account`. If an existing connection is shown, select **Add connection** to open a new form.
3. Under **Select services**, choose the services you want to use. You can select more than one.
4. Choose who can use the connection in Mythos: **Private**, **Share with others**, or **Share with workspace**.
5. Select **Connect Microsoft 365**. Sign in to the correct Microsoft account and review the requested permissions.
6. Complete Microsoft's consent flow and return to Mythos.
7. In your project, open **Chat actions (+) → Project connectors**, choose the saved connection, and select **Use in this project**.

Start with a read that identifies the resource clearly:

> Find the workbook at this link and list its worksheets. Do not change any cells yet.

If Microsoft asks for administrator approval, have your administrator review that request. Signing in repeatedly will not bypass an organizational restriction.

## Permissions and limits

Access follows your service selection. Excel requires Microsoft's file write permission even when your first task only reads cells; the connection's approval setting still controls whether Mythos asks before changing the workbook.

OneDrive and Word expose file information and organization actions. Do not rely on this connection to upload or download file contents. A file response may include a temporary preview or download link.

Large workbooks, protected sheets, unavailable files, and Microsoft request limits can affect a task. Give Mythos a specific table or cell range instead of asking it to process an entire company drive.

## Manage the connection

Open the saved Microsoft 365 connection in **Connectors** to review its status and sharing. To add another service to the same account, expand **Add services**, select it, and complete the additional Microsoft consent. Existing services stay connected.

Use **Unlink projects** to remove project access, or **Disconnect** to remove the saved connection from Mythos. Disconnecting does not remove files or messages. The Microsoft consent remains in your account until you revoke it through Microsoft's account or organization application settings.