Get Oauth token gives HTTP Error 401 - Unauthorized

Khalnayak · ‎11-17-2020

Hi all,

I have created an app registry for the Service Graph Connector for Microsoft Intune app in ServiceNow.

I have created an app registry in azure too and all the setup looks fine.

But when clicking on Get Oauth token I am getting the HTTP Error 401 - Unauthorized.

I dont know why though, as I have the exact same setup for my dev instance and that is working fine.

Just when setting it up in test it is giving this error.

The only difference between the 2 instances that I know of, is that test is SSO using Azure AD and Dev is not.

When i first clicked Get Oauth token, it asked me to login, then asked for admin approval, which I got an admin user to enter, and after that I am seeing this error.

Can someone advise please?

shawna · ‎05-01-2021

I had the same issue and this link really helped me. https://www.linkedin.com/pulse/servicenow-outbound-web-services-oauth-20-how-handle-r%C3%A9da-osseili/

The error that SN returned by default is very misleading since it hides the actual detailed error message. We need to add some logs in the script include (OAuthUtil) that parse the get token response, so we can understand the exact issue.

My particular issue was that I was using the wrong client secret. I used the id instead of the actual secret value. Silly me, I know!

Once you enable the log in OAuthUtil, The error message was able to lead me to resolve my issue.

Hope this will help someone in the future.

View solution in original post

Ankur Bawiskar · ‎11-17-2020

Hi,

You must have configured the Credentials somewhere in entity profile etc?

Regards
Ankur

Regards,
Ankur
✨ Certified Technical Architect || ✨ 9x ServiceNow MVP || ✨ ServiceNow Community Leader

Khalnayak · ‎11-17-2020

@Ankur Bawiskar are you referring to the below?

Vivektietsood · ‎11-17-2020

did you try testing the credentials using postman ?

Khalnayak · ‎11-17-2020

I cannot test with postman unfortunately, as the browser version does not allow adding a callback URL, is there another site I can try.

Khalnayak · ‎11-17-2020

Hi guys, so I have narrowed down the issue.

So when I try navigating to the redirect URI of my dev and prod instance I get the below message




But when I try the redirect URI of my test instance I get the 401 error as below


So I think it's something to do with my test instance that is the issue.
Please can you advise.