How to find Sub folder id in outlook

Hi,

I see what you’re trying, you want to locate the folder ID for a specific subfolder inside your Outlook inbox. That’s a great question because Outlook doesn’t show folder IDs directly in the normal web or desktop interface, so it’s a bit hidden unless you know where to look.

If you’re using Outlook on the web, there’s actually a sneaky little way to peek at the folder ID without any special tools, just your browser. Open your mailbox and click into the subfolder you want, then hit F12 to bring up the developer tools (or right-click and choose Inspect). Sometimes, you’ll spot the folder ID right in the address bar, it’s that long string after id= in the URL. If you don’t see it there, you can flip to the Network tab in Developer Tools, refresh the page, and look for a request named GetFolder or GetChildFolders. When you click one of those, the folder’s "Id" usually shows up in the JSON response. It’s a bit of a techy trick, but once you’ve done it once or twice, it’s surprisingly straightforward.

Kind regards,

Dear Roben, Raquel 

Thank you for reaching out to the Microsoft Q&A Community. I understand you're experiencing an issue. I am happy to assist you.

Here is a clear approach to help you understand your options: 

Option 1: Using Microsoft Graph Explorer 

• Go to Graph Explorer. 
• Sign in with your Outlook account. 
• Run this query to list all mail folders: 

GET https://graph.microsoft.com/v1.0/me/mailFolders 

This will return a JSON response with each folder’s id and displayName. 

• To find subfolders of a specific folder: 

GET https://graph.microsoft.com/v1.0/me/mailFolders/{folder_id}/childFolders 

Replace {folder_id} with the parent folder’s ID. 

Option 2: Using PowerShell for Exchange Online 

• Open PowerShell and connect to Exchange Online:  Connect-ExchangeOnline 
• Run this command to get the folder ID: 

 Get-MailboxFolder -Identity ******@domain.com:\Inbox\SubFolderName 

This will return the folder’s FolderId. 

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Warm regards 

Hi Roben, Raquel

It has been a while and I am writing to see how things are going with this issue. Have you had a chance to check the replies provided? Any update would be appreciated.  

Warm Regards

Hi Roben, Raquel

It has been a while and I am writing to see how things are going with this issue. Have you had a chance to check the replies provided? Any update would be appreciated.  

Warm Regards