Odoo 18 Calendar Module: Complete Overview
By Braincuber Team
Published on January 19, 2026
Missed meetings, scheduling conflicts, forgotten appointments—these drain productivity faster than any technical problem. The Odoo 18 Calendar module centralizes all your scheduling in one place, integrating with CRM, Sales, Projects, and HR to keep everyone aligned. Whether it's a quick internal sync or a client-facing presentation, Calendar handles the logistics so you can focus on the meeting itself.
This tutorial covers everything you need to know about the Calendar module: navigating the interface, creating meetings, adding attendees, setting up recurring events, managing appointments, syncing with Google and Outlook, and using calendar analytics.
Module Location: The Calendar module is available by default in Odoo 18. Access it from the main menu or via the calendar icon in the top navigation bar.
Key Features
Meeting Scheduling
Create meetings with subjects, durations, locations, and video call links. Set one-time or recurring events.
Attendee Management
Invite internal users and external contacts. Track RSVP responses and send automated reminders.
Calendar Sync
Two-way sync with Google Calendar and Microsoft Outlook. Events stay updated across all platforms.
Analytics & Reporting
Analyze meeting frequency, duration, and participant engagement. Identify scheduling patterns.
Calendar Views
The Calendar module offers multiple viewing options to suit your planning style:
Day
Hourly breakdown
Week
7-day overview
Month
Full month grid
Year
Annual planning
Creating a New Meeting
Here's how to schedule a meeting in the Calendar module:
Open the Calendar
- Go to Calendar from the main menu
- Click New or click directly on a time slot
Fill Meeting Details
| Meeting Subject | Descriptive title for the meeting |
| Start/End Time | Date and time range (duration auto-calculates) |
| Location | Physical address or meeting room |
| Video Call | Odoo generates link, or add external (Zoom, Teams) |
| Attendees | Invite internal users or external contacts |
Set Reminders & Recurrence
- Reminders: Email or SMS notifications before the meeting
- Recurrent: Enable for daily, weekly, monthly, or yearly repeats
- Privacy: Public, internal users only, or private
Save & Share
- Click Save to create the meeting
- Use Share Availabilities to let others see your open slots
- Use Share Calendar for team scheduling
Managing Attendees
The right sidebar displays meeting attendees with color-coded status:
- Add Attendee: Click "+ Add Attendee" to invite participants
- Color Coding: Each attendee gets a unique color on the calendar
- RSVP Tracking: See who has accepted, declined, or not responded
- Send Reminders: Automated email/SMS reminders before meetings
Appointments Menu
The Appointments feature integrates with external booking systems:
- Access via Calendar → Appointments
- View and manage all scheduled appointments
- Configure appointment types (consultations, demos, support calls)
- Share booking links with clients for self-scheduling
Calendar Synchronization
Sync your Odoo calendar with external services:
Google Calendar
Two-way sync with Google. Requires Client ID and Client Secret from Google Cloud Console.
Microsoft Outlook
Sync with Outlook 365. Configure via Azure Active Directory app registration.
Setup: Go to Calendar → Configuration → Calendar Settings to enter your OAuth credentials. Enable "Pause Synchronization" to temporarily stop syncing without removing the configuration.
Reporting & Analytics
Access calendar analytics via Calendar → Reporting:
- Meeting Frequency: How many meetings per day/week/month
- Duration Analysis: Average meeting length, total time spent
- Participant Engagement: RSVP rates, attendance patterns
- Chart Types: Bar, pie, line charts, and pivot tables
- Filters: By date range, organizer, attendee, event type
Use Case: HR teams use calendar reporting to track meeting culture—identifying if teams spend too much time in meetings vs. productive work.
Conclusion
The Odoo 18 Calendar module is more than a scheduling tool—it's a productivity hub that connects meetings, appointments, and time management with the rest of your business processes. With Google and Outlook sync, your calendar stays unified across platforms. With attendee tracking and reminders, no one misses a meeting. With reporting, you can analyze and optimize how your organization spends time.
Key Takeaway: Use Calendar for all scheduling. Add attendees and set reminders. Sync with Google/Outlook for cross-platform access. Use Appointments for client-facing booking. Review Reporting to optimize meeting culture.