Managing Office 365 Calendar Permissions with PowerShell

Managing Office 365 Calendar Permissions with PowerShell, in this article we read about how to managing Office 365 Calendar Permissions with PowerShell.

Efficiently managing calendar permissions is essential for organizations using Office 365 to ensure smooth scheduling and effective collaboration. While Office 365 offers a user-friendly interface for managing permissions, PowerShell provides advanced capabilities for automating and streamlining the process. In this article, we will explore how to manage calendar permissions in Office 365 using PowerShell, enabling administrators to efficiently control access and enhance productivity.

Managing Office 365 Calendar Permissions with PowerShell

Why Use PowerShell?

PowerShell is a powerful scripting language and automation framework that administrators can leverage to effectively manage Office 365 resources. With PowerShell, repetitive tasks can be automated, complex permissions configurations can be implemented, and calendar permissions can be managed efficiently across multiple users and groups. By utilizing PowerShell’s command-line interface and the comprehensive Office 365 module, administrators gain flexibility, control, and scalability in managing calendar permissions.


To get started, ensure that the following prerequisites are in place:

  1. A computer with PowerShell installed.
  2. The latest version of the Exchange Online Management Shell.
  3. Appropriate administrative credentials to access and modify calendar permissions to Managing Office 365 Calendar Permissions.

Managing Office 365 Calendar Permissions with PowerShell

Below we will check how to Managing Office 365 Calendar Permissions using powershell

Connecting to Office 365

Open PowerShell and establish a connection to Office 365 using the relevant module. For example, to connect to Exchange Online, use the “Connect-ExchangeOnline” cmdlet and provide the necessary credentials.

Connect-ExchangeOnline -Credential (Get-Credential)

Retrieving Calendar Permissions

Use the “Get-MailboxFolderPermission” cmdlet to view the existing permissions for a user’s calendar. Specify the mailbox and folder (e.g., calendar) to retrieve the associated permissions.

Get-MailboxFolderPermission -Identity\Calendar

Adding Calendar Permissions

Grant calendar permissions to users or groups by using the “Add-MailboxFolderPermission” cmdlet. Specify the mailbox, folder, user/group, and the desired permissions level (e.g., Editor, Reviewer, Author). The changes will take effect immediately.

Add-MailboxFolderPermission -Identity\Calendar -User -AccessRights Editor

Modifying Calendar Permissions

Modify existing permissions using the “Set-MailboxFolderPermission” cmdlet. Specify the mailbox, folder, user/group, and the new permissions level to adjust access levels as needed.

Set-MailboxFolderPermission -Identity\Calendar -User -AccessRights Reviewer

Removing Calendar Permissions

Revoke calendar permissions from users or groups using the “Remove-MailboxFolderPermission” cmdlet. Specify the mailbox, folder, and the user/group from which you want to remove the permission. The permission will be removed instantly.

Remove-MailboxFolderPermission -Identity\Calendar -User

Bulk Calendar Permission Management

PowerShell’s true power lies in managing calendar permissions in bulk. By utilizing loops and CSV files, administrators can efficiently apply permissions across multiple mailboxes and folders, saving time and effort.

$permissions = Import-Csv -Path "C:\Path\to\Permissions.csv"
foreach ($permission in $permissions) {
    Add-MailboxFolderPermission -Identity $permission.Mailbox -User $permission.User -AccessRights $permission.AccessRights

Using the above cmdlet we can managing Office 365 Calendar Permissions using powershell.

Best Practices for Calendar Permissions Management

  1. Regular Auditing: Perform regular audits to review and validate calendar permissions. PowerShell provides the ability to generate reports and identify any discrepancies or unauthorized access.
  2. Least Privilege Principle: Adhere to the principle of least privilege when assigning calendar permissions. Only grant the necessary level of access to users or groups to ensure data integrity and security.
  3. Consistent Naming Conventions: Establish consistent naming conventions for mailbox folders and groups to ensure clarity and ease of management. PowerShell scripts can help enforce naming conventions across the organization.
  4. Document Permissions Changes: Keep a record of calendar permissions changes for auditing and troubleshooting purposes. PowerShell allows for logging changes, aiding in tracking and identifying any unintended modifications.


Efficiently managing calendar permissions in Office 365 is crucial for organizations to ensure smooth collaboration and scheduling. While Office 365 provides a user-friendly interface, PowerShell empowers administrators to automate and streamline the process. With its robust scripting capabilities, PowerShell allows for efficient management of calendar permissions across multiple users and groups. By following best practices and leveraging PowerShell’s command-line interface, administrators can enhance productivity, maintain security, and gain granular control over calendar permissions in Office 365.

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