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Delete phoneAuthenticationMethod

Namespace: microsoft.graph

Delete a user's phone authentication method. This removes the phone number from the user and they'll no longer be able to use the number for authentication, whether via SMS or voice calls.

A user can't have an alternateMobile number without a mobile number. If you want to remove a mobile number from a user that also has an alternateMobile number, first update the mobile number to the new number, then delete the alternateMobile number.

If the phone number is the user's default Azure multi-factor authentication (MFA) authentication method, it can't be deleted. Have the user change their default authentication method, and then delete the number.

This API is available in the following national cloud deployments.

Global service US Government L4 US Government L5 (DOD) China operated by 21Vianet

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

Permission type Least privileged permissions Higher privileged permissions
Delegated (work or school account) UserAuthenticationMethod.ReadWrite.All UserAuthenticationMethod.ReadWrite
Delegated (personal Microsoft account) Not supported. Not supported.
Application UserAuthenticationMethod.ReadWrite.All Not available.

Important

In delegated scenarios with work or school accounts where the signed-in user is acting on another user, they must be assigned a supported Microsoft Entra role or a custom role with a supported role permission. The following least privileged roles are supported for this operation.

  • Authentication Administrator
  • Privileged Authentication Administrator

HTTP request

Delete your own phone authentication method.

Note

Calling the /me endpoint requires a signed-in user and therefore a delegated permission. Application permissions aren't supported when using the /me endpoint.

DELETE /me/authentication/phoneMethods/{phoneMethodId}

Delete your own or another user's phone authentication method.

Note

When calling the /users/{id} endpoint with {id} representing the signed-in user, the least privileged delegated permissions are UserAuthenticationMethod.Read for read operations and UserAuthenticationMethod.ReadWrite for write operations.

DELETE /users/{id | userPrincipalName}/authentication/phoneMethods/{phoneMethodId}

The value of phoneMethodId corresponding to the phoneType to delete is one of the following:

  • b6332ec1-7057-4abe-9331-3d72feddfe41 to delete the alternateMobile phoneType.
  • e37fc753-ff3b-4958-9484-eaa9425c82bc to delete the office phoneType.
  • 3179e48a-750b-4051-897c-87b9720928f7 to delete the mobile phoneType.

Request headers

Name Description
Authorization Bearer {token}. Required. Learn more about authentication and authorization.

Request body

Don't supply a request body for this method.

Response

If successful, this method returns a 204 No Content response code. It doesn't return anything in the response body.

Examples

Request

Here's an example of the request.

DELETE https://graph.microsoft.com/v1.0/me/authentication/phoneMethods/3179e48a-750b-4051-897c-87b9720928f7

Response

Here's an example of the response.

HTTP/1.1 204 No Content