Authentication method add

Question

Hello, I developing application for high schools and app was integrated with Office 365.
Application is being developed in C# with microsoft graph beta api nuget package.
I have problem with adding authentication method on user.
I added next Delegated permissions

• UserAuthenticationMethod.Read
• UserAuthenticationMethod.Read.All
• UserAuthenticationMethod.ReadWrite
• UserAuthenticationMethod.ReadWrite

and aquire new acces token with these permissions, but request return next error:

{
"error": {
"code": "accessDenied",
"message": "Request Authorization failed",
"innerError": {
"message": "Request Authorization failed",
"date": "2022-02-23T19:26:28",
"request-id": "11975e07-****-****-****-***********",
"client-request-id": "11975e07-****-****-****-*********"
}
}
}

Answer 1

As mentioned in the documentation, delegated permissions require a matching admin role as well:

For delegated scenarios where an admin is acting on another user, the admin needs one of the following Azure AD roles:

Global administrator
Privileged authentication administrator
Authentication administrator

So make sure you have all the necessary permissions. Other than that, share the exact request you're making.