How to sent invitation email using Microsoft Graph API

Question

I want to invite an user in our Active Directory/Tenant. For this using Micorosoft Graph API. Code is used as below

  IConfidentialClientApplication confidentialClientApplication = ConfidentialClientApplicationBuilder
            .Create(clientId)
            .WithTenantId(tenantID)
            .WithClientSecret(clientSecret)
            .Build();

        ClientCredentialProvider authProvider = new ClientCredentialProvider(confidentialClientApplication);

        GraphServiceClient graphClient = new GraphServiceClient(authProvider);

        var invitation = new Invitation
        {
            InvitedUserEmailAddress = "[email protected]",
            InviteRedirectUrl = "https://myapp.com"
        };

        await graphClient.Invitations
            .Request()
            .AddAsync(invitation);

After this, I can see the user in Azure's Active directory portal. But don't get an invitation email.

However, when I click on Resend Invite from Azure Portal then the invite email is coming.

Can you please guide, why the invite email is not coming when sending invite from API?

Aman B Aman B · Accepted Answer · 2019-10-03T10:14:33

You need to set SendInvitationMessage to true in your Invitation object:

var invitation = new Invitation
        {
            InvitedUserEmailAddress = "[email protected]",
            InviteRedirectUrl = "https://myapp.com",
            SendInvitationMessage = true
        };

For more info you can read the Docs

sendInvitationMessage Boolean Indicates whether an email should be sent to the user being invited or not. The default is false.

How to sent invitation email using Microsoft Graph API

1 Answers