Delete phoneAuthenticationMethod

2025-07-31

Namespace: microsoft.graph

Important

APIs under the /beta version in Microsoft Graph are subject to change. Use of these APIs in production applications is not supported. To determine whether an API is available in v1.0, use the Version selector.

Delete a user's phone authentication method.

Note: This removes the phone number from the user and they will no longer be able to use the number for authentication, whether via SMS or voice calls.

Remember that a user may not 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 multifactor authentication (MFA) authentication method, it cannot 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

The following example shows a request.

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


// Code snippets are only available for the latest version. Current version is 5.x

// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
await graphClient.Me.Authentication.PhoneMethods["{phoneAuthenticationMethod-id}"].DeleteAsync();

Important

Microsoft Graph SDKs use the v1.0 version of the API by default, and do not support all the types, properties, and APIs available in the beta version. For details about accessing the beta API with the SDK, see Use the Microsoft Graph SDKs with the beta API.

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.



// Code snippets are only available for the latest major version. Current major version is $v0.*

// Dependencies
import (
	  "context"
	  msgraphsdk "github.com/microsoftgraph/msgraph-beta-sdk-go"
	  //other-imports
)


// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=go
graphClient.Me().Authentication().PhoneMethods().ByPhoneAuthenticationMethodId("phoneAuthenticationMethod-id").Delete(context.Background(), nil)

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.


// Code snippets are only available for the latest version. Current version is 6.x

GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);

graphClient.me().authentication().phoneMethods().byPhoneAuthenticationMethodId("{phoneAuthenticationMethod-id}").delete();

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.


const options = {
	authProvider,
};

const client = Client.init(options);

await client.api('/me/authentication/phoneMethods/3179e48a-750b-4051-897c-87b9720928f7')
	.version('beta')
	.delete();

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.


<?php
use Microsoft\Graph\Beta\GraphServiceClient;


$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);


$graphServiceClient->me()->authentication()->phoneMethods()->byPhoneAuthenticationMethodId('phoneAuthenticationMethod-id')->delete()->wait();

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.


Import-Module Microsoft.Graph.Beta.Identity.SignIns

# A UPN can also be used as -UserId.
Remove-MgBetaUserAuthenticationPhoneMethod -UserId $userId -PhoneAuthenticationMethodId $phoneAuthenticationMethodId

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.


# Code snippets are only available for the latest version. Current version is 1.x
from msgraph_beta import GraphServiceClient
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python

await graph_client.me.authentication.phone_methods.by_phone_authentication_method_id('phoneAuthenticationMethod-id').delete()

Important

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Response

The following example shows the response.

HTTP/1.1 204 No Content

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Delete phoneAuthenticationMethod

Permissions

HTTP request

Request headers

Request body

Response

Examples

Request

Response

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