Setting up shared calendars
Summary
This guide helps you troubleshoot and resolve: Setting up shared calendars. Follow the steps below to fix the issue.
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Common Causes
Problem
You need to share your calendar with colleagues or view someone else’s shared calendar in Microsoft Outlook.
Why use shared calendars?
- Let others see your availability
- Book meeting rooms efficiently
- Coordinate with team members
- View colleague schedules
Part 1: Sharing your calendar
Step 1: Share your calendar (Outlook Desktop)
- Open Outlook and switch to the Calendar view.
- Click Share â–º Calendar Permissions.
- Press Add….
- Enter the name or email address of the person you want to share with and select them from the list.
- Choose a permission level:
- None – No access
- Free/Busy – Can only see if you’re free or busy
- Limited details – Can see subject and location
- Reviewer – Can see all details (read‑only)
- Editor – Can make changes to your calendar
- Click OK, then Apply and OK again.
Step 1: Share your calendar (Outlook on the Web)
- Sign in to Outlook on the Web (OWA) and select the Calendar icon.
- On the ribbon, choose Share â–º Share calendar.
- Enter the recipient’s email address.
- Select the desired permission level from the dropdown (e.g., Can view all details).
- Optionally add a message, then click Share.
Tip: For mobile users, you can share a calendar from the Outlook mobile app by tapping the calendar name, selecting Share calendar, and following the same steps.
Step 2: Send the calendar invitation
- In either Outlook Desktop or OWA, after setting permissions, click Share â–º Share Calendar.
- Enter the recipient’s email address (if not already filled).
- Add an optional message.
- Click Send.
Step 3: Allow copying (optional)
- Return to Calendar Permissions.
- Select the person you added.
- Check Delegate can see private items if you want them to view private appointments.
Note: If you need to grant full delegate access, see the How to share a calendar article for detailed delegate configuration.
Part 2: Opening a shared calendar
Method A: From an email invitation
- Open the invitation email you received.
- Click the Open this calendar button or link.
- The shared calendar will appear in your Outlook calendar list.
Method B: Add manually
- In the Calendar view, click Add calendar â–º Open shared calendar.
- Enter the name of the person whose calendar you want to open.
- Select the correct entry from the suggestions and click OK.
- The calendar will be added alongside yours.
Method C: From the address book
- Go to File â–º Open & Export â–º Open Shared Calendar.
- Click Name…, type the person’s name, and select them.
- Press OK to add the calendar.
Part 3: Viewing multiple calendars
- In the Calendar view, locate the left sidebar that lists your calendars.
- Check the boxes next to the calendars you wish to view.
- Use the colour dropdown to change calendar colours for easier distinction.
- Select Day, Week or Month to change the view.
Part 4: Using shared calendars effectively
Overlay view
- Select two or more calendars in the left sidebar.
- Click the Overlay button on the ribbon.
- The selected calendars will be stacked, helping you find common free times.
Room Finder (for meeting rooms)
- When creating a meeting, click the Room Finder pane.
- Choose an available room from the list.
- Room availability across multiple locations is displayed, simplifying booking.
Delegate someone (grant full access)
- Go to File â–º Account Settings â–º Delegate Access.
- Click Add… and search for the person you want to delegate.
- Set the desired permissions for Calendar, Inbox, Tasks, etc.
- Click OK. The delegate can now manage your calendar on your behalf.
Troubleshooting
Calendar not showing
- Ensure the calendar is enabled in the left sidebar.
- Confirm the owner has shared the calendar with you.
- Refresh Outlook (press
F5or use Send/Receive). - If the issue persists, see Calendar invite not showing.
Can’t see details
- The owner may have granted only Free/Busy access.
- Ask them to change your permission to Reviewer or higher.
Permission propagation delay
New permissions can take up to 15 minutes to propagate across Exchange. If changes don’t appear, wait a short period and then retry.
Need to remove access
- Open Calendar Permissions.
- Select the person whose access you want to remove.
- Click Remove and confirm.
Outlook cache issues
If shared calendars are not updating, clear the Outlook cache:
- Close Outlook.
- Navigate to
%localappdata%\Microsoft\Outlookin File Explorer. - Delete the
*.ostfiles (Outlook will recreate them on restart). - Reopen Outlook and allow it to resync.
Need more help?
Open a ticket with IT Support or speak with your manager if you:
- Can’t access a shared calendar you were promised
- Require higher permissions
- Are having trouble seeing availability
Still Having Issues?
Need more help? If the issue persists after trying these steps, please open a support ticket and our team will assist you.
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