Add-MailboxPermission — Basic UsageIT technician command center
Microsoft 365 · Exchange Online

Add-MailboxPermission — Basic Usage

Use Add-MailboxPermission for a standard administrative task.

Copy-ready commandAdd-MailboxPermission — Basic Usage
Add-MailboxPermission shared@contoso.com -User user@contoso.com -AccessRights FullAccess -AutoMapping $true
Production warning

Changing mailbox permissions or configuration can affect users.

Requirements and permissions

Requirements
ExchangeOnlineManagement module
Permissions
Exchange administrator or delegated role
Last reviewed
2026-07-31

Examples

Basic Usage

Use Add-MailboxPermission for a standard administrative task.

Add-MailboxPermission shared@contoso.com -User user@contoso.com -AccessRights FullAccess -AutoMapping $true

Original command

Grant full mailbox access.

Add-MailboxPermission shared@contoso.com -User user@contoso.com -AccessRights FullAccess -AutoMapping $true

Common errors

Command not found

Confirm ExchangeOnlineManagement module is installed and available in your current shell.