Using Remove-MgUserMailFolderChildFolder in Graph PowerShell

The Remove-MgUserMailFolderChildFolder cmdlet is a powerful tool in the Microsoft Graph PowerShell module used to delete a child mail folder (or sub-folder) within a user's mailbox. This article will cover the cmdlet's syntax, provide multiple usage examples, offer tips, discuss use cases, and address possible errors and their solutions.


Syntax

Remove-MgUserMailFolderChildFolder -UserId <String> -MailFolderId <String> -MailFolderId1 <String> []
  • UserId: The ID or user principal name of the user.
  • MailFolderId: The ID of the mail folder.
  • MailFolderId1: The ID of the child folder to be removed.
  • CommonParameters: This cmdlet supports common parameters like -Verbose, -Debug, -ErrorAction, etc.

Usage Examples

Example 1: Remove a specific child folder by passing parent folder name

Remove-MgUserMailFolderChildFolder -UserId "user@domain.com" -MailFolderId "Inbox"

You need to supply the child folder id to be deleted. Get-MgUserMailFolderChildFolder is the cmdlet using which you can get the child folder id.

Example 2: Remove a specific child folder by passing parent folder id

Remove-MgUserMailFolderChildFolder -UserId "user@domain.com" -MailFolderId "AQMkAGIAAAA="

You need to supply the child folder id to be deleted. Get-MgUserMailFolderChildFolder is the cmdlet using which you can get the child folder id. Get-MgUserMailFolder is the cmdlet using which you can get the parent folder id.


Cmdlet Tips

  • Ensure Correct IDs: Make sure to accurately identify and use the correct UserId, MailFolderId, and MailFolderId1 values.
  • Use Verbose for Debugging: The -Verbose parameter can help troubleshoot issues by providing more detailed output.
  • Check Permissions: Ensure you have the necessary permissions to delete folders in the user's mailbox.

Use Cases

  • Mailbox Cleanup: Automate the cleanup of unnecessary or outdated child folders in user mailboxes.
  • Compliance: Ensure compliance by programmatically removing folders containing sensitive information.
  • Migration: Clean up residual folders post-migration to streamline user mailboxes.

Possible Errors & Solutions

Error: Access Denied

Cause: Insufficient permissions to remove the folder.

Solution: Ensure that the executing account has the necessary permissions to delete folders in the specified user's mailbox. Assign appropriate roles if needed. Mail.ReadWrite is the required Graph API permission.

Error: Folder Not Found

Cause: Incorrect MailFolderId or MailFolderId1.

Solution: Verify the folder IDs. You can retrieve these IDs using the Get-MgUserMailFolder and Get-MgUserMailFolderChildFolder cmdlets.

Error: User Not Found

Cause: Incorrect UserId.

Solution: Ensure the UserId is correct and that the user exists in the tenant. You can verify user IDs using the Get-MgUser cmdlet.


Conclusion

The Remove-MgUserMailFolderChildFolder cmdlet is a valuable tool for managing and maintaining user mailboxes within Microsoft 365. By understanding its syntax, usage, and common issues, administrators can effectively leverage this cmdlet to automate and streamline mailbox management tasks. Always ensure correct usage of parameters and have the necessary permissions to avoid common pitfalls.


Additional Resources

Microsoft Graph PowerShell Module Documentation
Microsoft Graph API Documentation

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