Microsoft Graph API userInfo endpoint UnknownEror: Token must contain sub claim

Question

I'm trying to execute the userinfo endpoint at https://graph.microsoft.com/oidc/userinfo using an access token received through Open ID Connect.

The response received is:

400 Bad Request

{
"error": {
"code": "UnknownError",
"message": "Token must contain sub claim.",
"innerError": {
"date": "2021-02-22T03:57:51",
"request-id": "533a4343-85ab-45cb-9422-d7ec75677376",
"client-request-id": "533a4343-85ab-45cb-9422-d7ec75677376"
}
}
}

The access token does appear to contain the sub claim, it was visible in https://jwt.io.

If I login to https://developer.microsoft.com/en-us/graph/graph-explorer and try there it works and I notice the sub claim for the access token is different - for the same user.

Can you please help discern what could be the issue?

Answer 1

Have you fixed the error? I have the same one.