Update phoneAuthenticationMethod

Namespace: microsoft.graph

Update a user's phone number associated with a phone authentication method object.

You can't change a phone's type. To change a phone's type, add a new number of the desired type and then delete the object with the original type.

If a user is enabled by policy to use SMS to sign in and the mobile number is changed, the system will attempt to register the number for use in that system.


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

Permissions acting on self

Permission type Permissions (from least to most privileged)
Delegated (work or school account) UserAuthenticationMethod.ReadWrite
Delegated (personal Microsoft account) Not supported.
Application Not supported.

Permissions acting on other users

Permission type Permissions (from least to most privileged)
Delegated (work or school account) UserAuthenticationMethod.ReadWrite.All
Delegated (personal Microsoft account) Not supported.
Application UserAuthenticationMethod.ReadWrite.All

For delegated scenarios where an admin is acting on another user, the administrator needs the Authentication Administrator or Privileged Authentication Administrator Azure AD role.

HTTP request

Update your own phone authentication method.

PATCH /me/authentication/phoneMethods/{phoneMethodId}

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

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

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

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

Request headers

Name Description
Authorization Bearer {token}. Required.
Content-type application/json. Required.

Request body

In the request body, supply the values for relevant fields that should be updated. Existing properties that are not included in the request body will be recalculated based on changes to other property values.

Property Type Description
phoneNumber String The phone number to text or call for authentication. Phone numbers use the format +{country code} {number}x{extension}, with extension optional. For example, +1 5555551234 or +1 5555551234x123 are valid. Numbers are rejected when creating or updating if they do not match the required format.
phoneType string Possible values are: mobile, alternateMobile, or office.


If successful, this method returns a 204 No Content response code and an updated phoneAuthenticationMethod object in the response body.



The following is an example of the request.

PATCH https://graph.microsoft.com/v1.0/me/authentication/phoneMethods/3179e48a-750b-4051-897c-87b9720928f7
Content-type: application/json

  "phoneNumber": "+1 2065555554",
  "phoneType": "mobile",


The following is an example of the response.

HTTP/1.1 204 No Content