How to remove a users manager in AzureAD using Microsoft.Azure.ActiveDirectory.GraphClient

I'm using the Microsoft.Azure.ActiveDirectory.GraphClient (Version 2.1.0) to write an app for Azure AD user management. I'm able to set the Manager of a user but have no idea how to clear the field.

Unfortunately the sample project provided on GitHub do not contain this function either.


I managed to clear the "manager" field using the code below. It is not using the Microsoft.Azure.ActiveDirectory.GraphClient library but gets the job done.

var token = <get your adal token here>
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Authorization = 
    new AuthenticationHeaderValue("Bearer", token);

var url = "<tenant domain>/users/<userid>/$links/manager?api-version=1.6"
var resp = httpClient.DeleteAsync(url).Result;
if (!resp.IsSuccessStatusCode)
    // log / throw exception etc.   

//Assign and remove user's manager
// User.Manager = newUser as DirectoryObject;
           User.Manager = null;

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