403 Forbidden Error When Creating Virtual Event Registration with Microsoft Graph

Question

Testing the "Create virtualEventRegistration" feature in Microsoft Graph using Postman results in a 403 Forbidden response when attempting to create a registration record.

Are there specific requirements for the webinar to allow registration creation, or could there be steps that have been overlooked?

Here is the request being made. Note that {webinarId} is a valid webinar ID:

Request Headers:

POST https://graph.microsoft.com/v1.0/solutions/virtualEvents/webinars/{virtualEventWebinar-id}/registrations
Key: Content-Type; Value: application/json

**Request **

{
    "firstName": "firstName",
    "lastName": "lastName",
    "email": "firstName.lastName@mail.com",
    "preferredTimezone": "W. Europe Standard Time",
    "preferredLanguage": "it-it"
}

Response:

{
    "error": {
        "code": "Forbidden",
        "message": "Forbidden",
        "innerError": {
            "date": "2024-11-04T10:43:36",
            "request-id": "659d6fc6-046b-4128-9856-af84aac79566",
            "client-request-id": "659d6fc6-046b-4128-9856-af84aac79566"
        }
    }
}

Access Token Claims:

{
    "typ": "JWT",
    "nonce": "TC77aFqqgHfPLaslYrnr_82sEBuMz7QUhCQgW3LMmr8",
    "alg": "RS256",
    "x5t": "3PaK4EfyBNQu3CtjYsa3YmhQ5E0",
    "kid": "3PaK4EfyBNQu3CtjYsa3YmhQ5E0"
}.{
    "aud": "https://graph.microsoft.com",
    "iss": "https://sts.windows.net/3ad452f7-c913-42f2-977e-9f63fb01e263/",
    "iat": 1730716335,
    "nbf": 1730716335,
    "exp": 1730720235,
    "aio": "k2BgYLhT31K3YpGaXm/H9VupR6eVAwA=",
    "app_displayname": "Test integrazione Teams Wally",
    "appid": "2fd26a4e-b262-461e-b41f-f7d02e7f4f9b",
    "appidacr": "1",
    "idp": "https://sts.windows.net/3ad452f7-c913-42f2-977e-9f63fb01e263/",
    "idtyp": "app",
    "oid": "9b334beb-32d2-4c64-b1ee-5740f6d6b1d6",
    "rh": "1.AS8A91LUOhPJ8kKXfp9j-wHiYwMAAAAAAAAAwAAAAAAAAACwAAAvAA.",
    "roles": [
        "OnlineMeetings.Read.All",
        "OnlineMeetings.ReadWrite.All",
        "OnlineMeetingArtifact.Read.All",
        "Calendars.Read",
        "VirtualEvent.Read.All",
        "User.Read.All",
        "Calendars.ReadBasic.All",
        "Calendars.ReadWrite",
        "VirtualEventRegistration-Anon.ReadWrite.All"
    ],
    "sub": "9b334beb-32d2-4c64-b1ee-5740f6d6b1d6",
    "tenant_region_scope": "EU",
    "tid": "3ad452f7-c913-42f2-977e-9f63fb01e263",
    "uti": "yHk2hRiXsECQmmNXoypIAA",
    "ver": "1.0",
    "wids": [
        "0997a1d0-0d1d-4acb-b408-d5ca73121e90"
    ],
    "xms_idrel": "6 7",
    "xms_tcdt": 1539601217,
    "xms_tdbr": "EU"
}.[Signature]

Answer 1

Hello Bombardi BKM,

Thank you for contacting Microsoft Support!

Please check whether the webinar is public/private. If its private, try creating public webinar and create registration.

Hope this helps.

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