Microsoft 365 Calendar

Description

This module integrates Microsoft Outlook Calendar via Microsoft Graph API. It offers the following operations:

• List calendars: Gets all user calendars.
• List events: Lists events with date filters and pagination. Returns complete information including attendees, location and online meeting links.
• Get event: Retrieves complete details of a specific event, including recurrence, importance and sensitivity.
• Create event: Creates events with support for attendees, location, reminders, importance and Teams online meetings.
• Update event: Modifies partial fields of an existing event.
• Delete event: Deletes an event by ID.
• Respond to event: Accepts, declines or tentatively responds to an invitation.
• Find availability: Finds free time slots among multiple attendees.

The operation is automatically determined by the sub-node used. Uses OAuth2 with Microsoft Graph via microsoftOAuthService.

Configuration

Parameter	Type	Required	Description
credentials_id	credentials	Yes	Configured Microsoft OAuth account
operation	select	Yes	Operation to perform

Sub-node List Events

Parameter	Type	Required	Description
startDateTime	string	No	Start date ISO 8601
endDateTime	string	No	End date ISO 8601
top	string	No	Maximum events (default: 50)
outputKey	string	No	Output key (default: events)

Sub-node Create Event

Parameter	Type	Required	Description
subject	string	Yes	Event title
startDateTime	string	Yes	Start date/time ISO 8601
endDateTime	string	Yes	End date/time ISO 8601
body	string	No	Event description
timeZone	string	No	Time zone (default: UTC)
location	string	No	Event location
attendees	string	No	Emails separated by comma
isAllDay	string	No	All-day event (true/false)
reminderMinutes	string	No	Minutes before for reminder
isOnlineMeeting	string	No	Create Teams meeting (true/false)

Sub-node Update Event

Parameter	Type	Required	Description
eventId	string	Yes	Event ID to update
subject	string	No	New title
body	string	No	New description
startDateTime	string	No	New start date
endDateTime	string	No	New end date
location	string	No	New location

Sub-node Delete Event / Get Event

Parameter	Type	Required	Description
eventId	string	Yes	Event ID

Credentials

Requires Microsoft OAuth2 type credentials. Needed:

• Client ID and Client Secret from Azure AD App Registration
• Scopes: Calendars.ReadWrite
• The module manages token refresh automatically

Output

{
  "nextModule": "siguiente_modulo",
  "data": {
    "events": [
      {
        "id": "AAMkAD...",
        "subject": "Reunion de equipo",
        "start": "2026-03-25T10:00:00",
        "end": "2026-03-25T11:00:00",
        "location": "Sala A",
        "isAllDay": false,
        "organizer": "usuario@empresa.com",
        "attendees": [{ "email": "asistente@empresa.com", "name": "Asistente", "status": "accepted", "type": "required" }],
        "webLink": "https://outlook.office365.com/...",
        "onlineMeetingUrl": "https://teams.microsoft.com/l/meetup-join/..."
      }
    ]
  },
  "_meta_": { "operation": "listEvents", "microsoftService": "calendar" }
}

Usage Example

Basic case - Create event with Teams meeting

{
  "credentials_id": "mi-cuenta-ms365",
  "operation": "createEvent",
  "subject": "Standup diario",
  "startDateTime": "2026-03-25T09:00:00",
  "endDateTime": "2026-03-25T09:15:00",
  "timeZone": "Europe/Madrid",
  "isOnlineMeeting": "true",
  "attendees": "dev1@empresa.com,dev2@empresa.com"
}

API Used

• Microsoft Graph API - Calendar endpoints (/me/calendar/events, /me/calendars, /me/findMeetingTimes)

Notes

• Attendees can be passed as a comma-separated string or as an array
• The findMeetingTimes operation uses duration in ISO 8601 format (e.g.: PT1H for 1 hour)
• OAuth audit is logged for each operation and also in case of error
• Supports continueOnError so the flow doesn’t stop on errors

Related Nodes

• MS365 Outlook - Email with Microsoft Outlook
• MS365 Teams - Teams channels, messages and meetings
• MS365 Excel - Excel files in OneDrive