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Create invitation

Namespace: microsoft.graph

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:

  1. 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.
  2. When the user is invited, a user entity (of userType Guest) 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.

This API is available in the following national cloud deployments.

Global service US Government L4 US Government L5 (DOD) China operated by 21Vianet

Permissions

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.

HTTP request

POST /invitations

Request headers

Header Value
Authorization Bearer {token}. Required. Learn more about authentication and authorization.
Content-Type application/json

Request body

In the request body, supply a JSON representation of an invitation object.

The following table lists the parameters that are required when you create an invitation.

Parameter Type Description
invitedUserEmailAddress string The email address of the user you're inviting.
inviteRedirectUrl string The URL that the user will be redirected to after redemption.

Response

If successful, this method returns 201 Created response code and an invitation object in the response body.

Example

Example 1: Invite a guest user

Request

The following example shows a request to add and invite a guest user.

POST https://graph.microsoft.com/v1.0/invitations
Content-type: application/json

{
  "invitedUserEmailAddress": "admin@fabrikam.com",
  "inviteRedirectUrl": "https://myapp.contoso.com"
}

Response

The following example shows the response.

Note: The response object shown here might be shortened for readability.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#invitations/$entity",
    "id": "9071bfde-35e0-47d2-a582-d244ab1b4af6",
    "inviteRedeemUrl": "https://login.microsoftonline.com/redeem?rd=https%3a%2f%2finvitations.microsoft.com%2fredeem%...d%26ver%3d2.0",
    "invitedUserDisplayName": null,
    "invitedUserType": "Guest",
    "invitedUserEmailAddress": "admin@fabrikam.com",
    "sendInvitationMessage": false,
    "resetRedemption": false,
    "inviteRedirectUrl": "https://myapp.contoso.com",
    "status": "PendingAcceptance",
    "invitedUserMessageInfo": {
        "messageLanguage": null,
        "customizedMessageBody": null,
        "ccRecipients": [
            {
                "emailAddress": {
                    "name": null,
                    "address": null
                }
            }
        ]
    },
    "invitedUser": {
        "id": "cbb896f9-8306-49d0-b56b-b8e39cd28825"
    }
}

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.

POST https://graph.microsoft.com/v1.0/invitations
Content-type: application/json

{
    "invitedUserEmailAddress": "AdeleV@fabrikam.com",
    "inviteRedirectUrl": "https://myapp.contoso.com",
    "invitedUser": {
        "id": "264e6d50-eaec-461e-b187-873b1bcf855f"
    },
    "resetRedemption": true
}

Response

The following example shows the response.

Note: The response object shown here might be shortened for readability.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#invitations/$entity",
    "id": "46d72876-dba6-4a05-b9ec-118faf16c4b7",
    "inviteRedeemUrl": "https://login.microsoftonline.com/redeem?rd=https%3a%2f%2finvitations.microsoft.com%2fredeem%2f%3fte...3d2.0",
    "invitedUserDisplayName": null,
    "invitedUserType": "Guest",
    "invitedUserEmailAddress": "AdeleV@fabrikam.com",
    "sendInvitationMessage": false,
    "resetRedemption": true,
    "inviteRedirectUrl": "https://myapp.contoso.com",
    "status": "PendingAcceptance",
    "invitedUserMessageInfo": {
        "messageLanguage": null,
        "customizedMessageBody": null,
        "ccRecipients": [
            {
                "emailAddress": {
                    "name": null,
                    "address": null
                }
            }
        ]
    },
    "invitedUser": {
        "id": "264e6d50-eaec-461e-b187-873b1bcf855f"
    }
}