--- title: Microsoft 365 description: "Integrate with Microsoft 365 via Graph: send and read Outlook mail, manage OneDrive files, create calendar events and To Do tasks." --- Send and read Outlook mail, put files in OneDrive, add calendar events and To Do tasks, all from one Microsoft 365 node. Pick a saved connection in the **Credential** field, or create one from there. It signs in with an OAuth2. ## What it does The Microsoft 365 node works on four kinds of things (**Resource**), each with its own **Operation**: * **Mail** (Outlook): send an email, save one as a draft, list your latest messages, or get one message. * **File** (OneDrive): upload text as a file, list the files at the top of your OneDrive, or create a sharing link for a file or folder. * **Calendar** (Outlook calendar): create an event, or list events. * **To Do**: create a task, or list the tasks of a list. Everything happens in the signed-in account (your own mailbox, drive, calendar and lists). When you fill **Source URL**, the node adds a `Source:` line with that link to the end of the email body, event description or task note, so you can keep track of the page it came from. **Mail → List** and **Calendar → List** return 10 items by default (up to 100). **File → Upload** sends the text in **File content** as a single upload, which suits files up to about 4 MB. When **List ID** is empty, To Do uses your default task list. ## When to use it * Email yourself or a colleague a summary built by an AI node, with the source page linked. * Save a report as a text or CSV file in OneDrive, then share a view link to it. * Add a meeting or deadline you found on a page to your Outlook calendar. * Turn a page into a To Do task, "read later" style. If you use Google's apps, see [Gmail](/nodes/builtin/integration/gmail/), [Google Drive](/nodes/builtin/integration/google-drive/) and [Google Calendar](/nodes/builtin/integration/google-calendar/). ## Inputs and settings Call the Microsoft 365 API yourself with the HTTP Request node, and pick the same connection in its **Credential** field. * **To** and **Attendees** take one email address per entry. * **Body type** decides whether **Body** is read as plain text or as HTML. It is plain text when not set. * **File path** is relative to the top of your OneDrive, with folders separated by `/`, for example `Reports/daily.csv`. An existing file at that path is replaced. * **Content type** is the file's type, such as `text/csv` or `application/json`. It is `text/plain` when empty. * **Start (date-time)** and **End (date-time)** take a date and time without an offset, like `2026-09-10T09:00:00`. They are read in **Time Zone**, which is `UTC` when empty, so set it (for example `Europe/Paris`) to avoid events at the wrong hour. * **Link type** is `View` and **Link scope** is `Anyone` when not set. Your organization may not allow `Anyone` links; use `Organization` then. * **Message ID**, **Item ID** and **List ID** come from the `id` field of a list operation's output. ## Outputs * **Mail → Send** returns `success: true` once Outlook accepts the email. The email is also saved in Sent Items. * **Mail → Draft**, **Mail → Get**, **Calendar → Create event** and **To Do → Create task** return the created or fetched item as Microsoft sends it, with its `id`. * **Mail → List** returns one item per message with `id`, `subject`, `from`, `receivedDateTime`, `webLink` and `bodyPreview`. * **File → List**, **Calendar → List** and **To Do → List** return one item per file, event or task. * **File → Upload** returns the file's details, including its `id`, which you can pass to **File → Get link**. * **File → Get link** returns the sharing link; the address is in `link.webUrl`. ## Dependencies and credentials * **Credential** (connection, OAuth2): required. See [Create a connection](/app/connections/). The credential is a Microsoft sign-in (OAuth2). You first register a small app in the Azure portal, as a public client with no secret, and paste its **Application (client) ID** into the credential. Give it these delegated Microsoft Graph permissions: `offline_access`, `Mail.ReadWrite`, `Mail.Send`, `Files.ReadWrite`, `Calendars.ReadWrite` and `Tasks.ReadWrite`. Then sign in with your Microsoft account and accept the permissions. Follow [Create your OAuth client](/app/connections/oauth-client/#microsoft-365) for the step-by-step registration, then [Create a credential](/app/connections/create/). The sign-in renews itself, so you do not need to sign in again for each run. ## Example workflow 1. A [Context Menu](/nodes/builtin/trigger/contextmenu/) trigger adds "Remind me" to the right-click menu on any page. 2. [Get Page Metadata](/nodes/extension/getpagemetadata/) reads the page's `title` and `url`. 3. Microsoft 365, **To Do → Create task**, with **Title** `Read: {{ $input.title }}` and **Source URL** `{{ $input.url }}`. Leave **List ID** empty to use your default list. 4. [Browser Notification](/nodes/extension/browsernotification/) confirms the task was added. ## Common issues * **"Microsoft Graph Error: access denied — your organization's admin may have blocked this app…".** Your organization blocks the app, or one of the permissions needs an admin's consent. Ask your Microsoft 365 admin to approve the app, or use an account that allows it. * **"Missing credential".** No credential is selected. Pick or create one in **Credential**. * **"Microsoft Graph Error: no To Do lists found for this account".** **List ID** is empty and the account has no To Do list. Open Microsoft To Do once to create one, or set **List ID**. * **The event is at the wrong time.** **Time Zone** is empty, so the times were read as UTC. Set your time zone. * **The run is blocked in the web app.** Microsoft 365 runs through the browser extension. Install the extension and allow Microsoft 365 for this workflow when asked, or run the workflow from the extension. See [Running extension-only integrations in the web app](/app/troubleshooting/extension-only-integrations-in-the-web-app/). ## Related nodes * [Gmail](/nodes/builtin/integration/gmail/) and [Google Calendar](/nodes/builtin/integration/google-calendar/): the same jobs with a Google account. * [CSV](/nodes/builtin/datatransformation/csv/): turn items into CSV text to put in **File content**. * [Todoist](/nodes/builtin/integration/todoist/): tasks in Todoist instead of To Do. * [Http Request](/nodes/builtin/core/http-request/): call Microsoft Graph endpoints this node does not cover.