> ## Documentation Index
> Fetch the complete documentation index at: https://docs.collabase.ch/llms.txt
> Use this file to discover all available pages before exploring further.

# Outlook Calendar

> Manage Microsoft 365 calendar events, respond to meeting requests, and check scheduling availability.

# Outlook Calendar

Create, update, delete, and list events in Microsoft 365 (Outlook) calendars via Microsoft Graph API. Includes a scheduling assistant to find available meeting slots.

## Authentication

**Auth type:** OAuth 2.0 (client credentials or delegated)

Register an app in [Azure Portal](https://portal.azure.com) → App registrations. Grant `Calendars.ReadWrite` and `OnlineMeetings.ReadWrite` permissions.

| Credential       | Description                      |
| ---------------- | -------------------------------- |
| **Access Token** | Microsoft Graph API access token |

## Triggers

| Trigger                       | When it fires                                         |
| ----------------------------- | ----------------------------------------------------- |
| **Event Created**             | A new calendar event is created                       |
| **Event Updated**             | An event's details change                             |
| **Event Cancelled**           | An event is cancelled                                 |
| **Meeting Response Received** | An attendee accepts, declines, or tentatively accepts |

## Actions

<AccordionGroup>
  <Accordion title="Events">
    | Action           | Key inputs                                                                                      | Key outputs                                        |
    | ---------------- | ----------------------------------------------------------------------------------------------- | -------------------------------------------------- |
    | **Create Event** | `subject`, `body`, `startDateTime`, `endDateTime`, `attendees[]`, `location`, `isOnlineMeeting` | eventId, webLink, onlineMeetingUrl                 |
    | **Get Event**    | `eventId`                                                                                       | eventId, subject, start, end, attendees\[], status |
    | **Update Event** | `eventId`, `subject`, `startDateTime`, `endDateTime`, `body`                                    | eventId, webLink                                   |
    | **Delete Event** | `eventId`                                                                                       | deleted                                            |
    | **List Events**  | `startDateTime`, `endDateTime`, `top`                                                           | events\[], count                                   |
  </Accordion>

  <Accordion title="Response & scheduling">
    | Action                          | Key inputs                                                          | Key outputs    |
    | ------------------------------- | ------------------------------------------------------------------- | -------------- |
    | **Respond to Meeting**          | `eventId`, `response` (accept/decline/tentativelyAccept), `comment` | success        |
    | **Get Scheduling Availability** | `attendees[]`, `startDateTime`, `endDateTime`, `durationMinutes`    | suggestions\[] |
  </Accordion>
</AccordionGroup>