Unable to connect to OAuth 2.0 authorization endpoint (v2)

Question

Dear support team,

Thank you for the continuous support.

I am trying to configure OAuth 2.0 (Microsoft) Settings on my Multifunction printer for SMTP AUTH.

The only setting i can input to the MFP is the Microsoft Entra ID Authorization endpoint and nothing else.

As you can see I am not able to connect to the server.

If i enter the OAuth 2.0 authorization endpoint (v2) to web browser, I am return with the following error:

I am wondering if this is the issue which causes me unable to connect to it.

Please advise how do i go about to resolve this issue.

Thank you in advance!

Regards
KY

Answer 1

Hi @Exploda

Thank you for posting this in Microsoft Q&A.

I understand that you are experiencing issues connecting to the OAuth 2.0 authorization endpoint due to the error AADSTS900144: The request body must contain the 'client_id' parameter.

ClientID should be in the body section and if they are not, this error might be thrown.

To connect to the OAuth 2.0 authorization endpoint (v2), you must include required parameters such as tenant, client_id, response_type, redirect_uri, and scope.

Have you created App registration in Entra admin center. You can find the client_id on the app registration overview page.

Sample OAuth 2.0 authorization endpoint (v2)

https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/authorize?
client_id= ClientID
&response_type=code
&redirect_uri=https://login.microsoftonline.com/common/oauth2/nativeclient
&response_mode=query
&scope=user.read

For your reference: https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-auth-code-flow#request-an-authorization-code

Hope this helps. Do let us know if you any further queries.

Thanks,

Navya.

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