Create child folder

Namespace: microsoft.graph

Use this API to create a new child mailFolder.

If you intend a new folder to be hidden, you must set the isHidden property to true on creation.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type Permissions (from least to most privileged)
Delegated (work or school account) Mail.ReadWrite
Delegated (personal Microsoft account) Mail.ReadWrite
Application Mail.ReadWrite

HTTP request

POST /me/mailFolders/{id}/childFolders
POST /users/{id | userPrincipalName}/mailFolders/{id}/childFolders

Specify the parent folder in the query URL as a folder ID, or a well-known folder name. For a list of supported well-known folder names, see mailFolder resource type.

Request headers

Header Value
Authorization Bearer {token}. Required.
Content-Type application/json. Required.

Request body

In the request body, provide a JSON object with the following parameters. displayName and isHidden are the only writable property for a mailFolder object.

Parameter Type Description
displayName String The display name of the new folder.
isHidden Boolean Indicates whether the new folder is hidden. The default value is false. Setting the property is optional. Once set, you cannot update this property. See more information in Hidden mail folders


If successful, this method returns 201 Created response code and a mailFolder resource in the response body.



Here is an example of the request.

Content-type: application/json

  "displayName": "displayName-value",
  "isHidden": true

Here is an example of the response.

Note: The response object shown here might be shortened for readability.

HTTP/1.1 200 OK
Content-type: application/json

  "displayName": "displayName-value",
  "parentFolderId": "parentFolderId-value",
  "childFolderCount": 99,
  "unreadItemCount": 99,
  "totalItemCount": 99,
  "id": "id-value",
  "isHidden": true