Use this API to create a new invitation or reset the redemption status for a guest user who already redeemed their invitation. The invitation adds the external user to the organization as part of B2B collaboration. B2B collaboration is supported in both Microsoft Entra External ID in workforce and external tenants.
When creating a new invitation, you have several options available:
On invitation creation, Microsoft Graph can automatically send an invitation email directly to the invited user, or your app can use the inviteRedeemUrl returned in the response to craft your own invitation (through your communication mechanism of choice) to the invited user. If you decide to have Microsoft Graph send an invitation email automatically, you can specify the content and language of the email by using invitedUserMessageInfo.
When the user is invited, a user entity (of userTypeGuest) is created and can be used to control access to resources. The invited user has to go through the redemption process to access any resources they have been invited to.
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)
User.Invite.All
Directory.ReadWrite.All, User.ReadWrite.All
Delegated (personal Microsoft account)
Not supported.
Not supported.
Application
User.Invite.All
Directory.ReadWrite.All, User.ReadWrite.All
Important
In delegated scenarios with work or school accounts, the signed-in user 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:
To invite guests:
Both nonadmin member users and guest users can invite guests if the tenant admin hasn't restricted the default user permissions.
Guest Inviter, Directory Writers, or User Administrator.
To reset the redemption status: Helpdesk Administrator or User Administrator.
Application permissions (app-only) don't work if B2B invitations are disabled on the tenant or if B2B invitations are restricted to administrators.
When resetting the redemption status for a guest user, the User.ReadWrite.All permission is the least privileged permission for the operation.
POST https://graph.microsoft.com/v1.0/invitations
Content-type: application/json
{
"invitedUserEmailAddress": "admin@fabrikam.com",
"inviteRedirectUrl": "https://myapp.contoso.com"
}
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Invitation
{
InvitedUserEmailAddress = "admin@fabrikam.com",
InviteRedirectUrl = "https://myapp.contoso.com",
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Invitations.PostAsync(requestBody);
// Code snippets are only available for the latest major version. Current major version is $v1.*
// Dependencies
import (
"context"
msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
graphmodels "github.com/microsoftgraph/msgraph-sdk-go/models"
//other-imports
)
requestBody := graphmodels.NewInvitation()
invitedUserEmailAddress := "admin@fabrikam.com"
requestBody.SetInvitedUserEmailAddress(&invitedUserEmailAddress)
inviteRedirectUrl := "https://myapp.contoso.com"
requestBody.SetInviteRedirectUrl(&inviteRedirectUrl)
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=go
invitations, err := graphClient.Invitations().Post(context.Background(), requestBody, nil)
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Invitation invitation = new Invitation();
invitation.setInvitedUserEmailAddress("admin@fabrikam.com");
invitation.setInviteRedirectUrl("https://myapp.contoso.com");
Invitation result = graphClient.invitations().post(invitation);
<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Models\Invitation;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new Invitation();
$requestBody->setInvitedUserEmailAddress('admin@fabrikam.com');
$requestBody->setInviteRedirectUrl('https://myapp.contoso.com');
$result = $graphServiceClient->invitations()->post($requestBody)->wait();
# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
from msgraph.generated.models.invitation import Invitation
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python
request_body = Invitation(
invited_user_email_address = "admin@fabrikam.com",
invite_redirect_url = "https://myapp.contoso.com",
)
result = await graph_client.invitations.post(request_body)
Example 2: Reset the redemption status of a guest user
Request
The following example shows a request to reset the redemption status of a guest user. The request changes the user's email address, but keeps their current user ID. Before running the request, you must add the new email address the otherMails property of the existing guest user object.
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Invitation
{
InvitedUserEmailAddress = "AdeleV@fabrikam.com",
InviteRedirectUrl = "https://myapp.contoso.com",
InvitedUser = new User
{
Id = "264e6d50-eaec-461e-b187-873b1bcf855f",
},
ResetRedemption = true,
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Invitations.PostAsync(requestBody);
// Code snippets are only available for the latest major version. Current major version is $v1.*
// Dependencies
import (
"context"
msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
graphmodels "github.com/microsoftgraph/msgraph-sdk-go/models"
//other-imports
)
requestBody := graphmodels.NewInvitation()
invitedUserEmailAddress := "AdeleV@fabrikam.com"
requestBody.SetInvitedUserEmailAddress(&invitedUserEmailAddress)
inviteRedirectUrl := "https://myapp.contoso.com"
requestBody.SetInviteRedirectUrl(&inviteRedirectUrl)
invitedUser := graphmodels.NewUser()
id := "264e6d50-eaec-461e-b187-873b1bcf855f"
invitedUser.SetId(&id)
requestBody.SetInvitedUser(invitedUser)
resetRedemption := true
requestBody.SetResetRedemption(&resetRedemption)
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=go
invitations, err := graphClient.Invitations().Post(context.Background(), requestBody, nil)
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Invitation invitation = new Invitation();
invitation.setInvitedUserEmailAddress("AdeleV@fabrikam.com");
invitation.setInviteRedirectUrl("https://myapp.contoso.com");
User invitedUser = new User();
invitedUser.setId("264e6d50-eaec-461e-b187-873b1bcf855f");
invitation.setInvitedUser(invitedUser);
invitation.setResetRedemption(true);
Invitation result = graphClient.invitations().post(invitation);
<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Models\Invitation;
use Microsoft\Graph\Generated\Models\User;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new Invitation();
$requestBody->setInvitedUserEmailAddress('AdeleV@fabrikam.com');
$requestBody->setInviteRedirectUrl('https://myapp.contoso.com');
$invitedUser = new User();
$invitedUser->setId('264e6d50-eaec-461e-b187-873b1bcf855f');
$requestBody->setInvitedUser($invitedUser);
$requestBody->setResetRedemption(true);
$result = $graphServiceClient->invitations()->post($requestBody)->wait();
# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
from msgraph.generated.models.invitation import Invitation
from msgraph.generated.models.user import User
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python
request_body = Invitation(
invited_user_email_address = "AdeleV@fabrikam.com",
invite_redirect_url = "https://myapp.contoso.com",
invited_user = User(
id = "264e6d50-eaec-461e-b187-873b1bcf855f",
),
reset_redemption = True,
)
result = await graph_client.invitations.post(request_body)