How to Create a Shared Calendar in Microsoft 365 Apps for Business
Question details
Users need to create a shared calendar that is visible and accessible to team members within their organization.
- Product
- Microsoft 365 Apps for Business
- Device & OS
- not provided
- Scenario
- Setting up a collaborative team calendar for organizational scheduling.
- Observed behavior
- Calendars created manually in Outlook or SharePoint are not visible to other users due to incorrect provisioning or permission issues.
Ensure you have administrator privileges in the Microsoft 365 admin center, as creating shared mailboxes or Microsoft 365 groups requires admin access.
Create a Shared Mailbox Calendar in the Exchange Admin Center
The most reliable method for creating a shared calendar is by setting up a shared mailbox and assigning Full Access permissions to required users.
A shared mailbox automatically includes a shared calendar that all assigned members can view and edit based on their permissions. Note that shared calendars may not synchronize or function as expected in an IMAP-only email environment.
Sign in to the Microsoft 365 admin center with your administrator credentials, expand the left navigation menu, and select 'Exchange' under the Admin centers section.
Navigate to 'Recipients' > 'Mailboxes' in the Exchange admin center and click on 'Add a shared mailbox'. Enter a display name and an email address for the shared mailbox, then click 'Save'.
Select the newly created shared mailbox from the list and click on 'Manage mailbox delegation' under the Mailbox permissions section.
Click 'Edit' under 'Read and manage (Full Access)', add the users who need access to the calendar, and save. Repeat the process for 'Send as' permissions if users need to send meeting invites on behalf of the calendar.
Set up a Microsoft 365 Group Calendar
Alternatively, creating a Microsoft 365 Group will automatically provision a shared workspace that includes a dedicated group calendar.
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Frequently Asked Questions
Why can't my users see the shared calendar I created in Outlook?
If you only share a personal Outlook calendar folder, users might not see it if permissions are misconfigured or if you are operating in an IMAP environment. Setting up a dedicated shared mailbox in the Exchange admin center provides a more reliable infrastructure for team access.
Do users need a separate Microsoft 365 license for a shared mailbox?
No, shared mailboxes do not require a separate Microsoft 365 license as long as the mailbox does not exceed the 50 GB storage limit and the users accessing it possess their own valid Microsoft 365 licenses.
How do users manually open the shared mailbox calendar in Outlook?
In the Outlook desktop client, users can go to the Calendar view, right-click 'Shared Calendars' (or click 'Add Calendar' in the ribbon), select 'Open Shared Calendar', and type the name or email address of the shared mailbox to add it to their view.
