Access denied with Oauth2

[lucaburgazzoli]

Hello, 

I'm trying to use OAuth2 to access ServiceNow through its REST APIs and I've followed the guides here:

1. https://docs.servicenow.com/bundle/paris-platform-administration/page/administer/security/reference/r_OAuthAPIRequestParameters.html
2. https://community.servicenow.com/community?id=community_blog&sys_id=56086e4fdb9014146064eeb5ca961957

But I'm constantly getting HTTP 401 unauthorized, what should I check ?

[Ankur Bawiskar]

Hi,

Thanks for going through my blog.

Error 401 means incorrect username and password

Are you getting this error when obtaining the Access token for the first time?

Regards
Ankur

[Ankur Bawiskar]

@lucaburgazzoli 

Are you able to get the OAuth access token with the non-admin user session?

The ACL on the oauth_credential table might be causing this issue. Try adding a read ACL on the table and provide the role who needs this access to call and you should be able to test it.

Regards
Ankur

[lucaburgazzoli]

It turn out that the issue was that I didn't set

    
Content-Type: application/x-www-form-urlencoded


When adding it, then the call succeeded and I'm able to my token (the error message does not really help understanding the issue)

[Ankur Bawiskar · Accepted solution]

Hi,

Did you follow the steps properly as mentioned in blog?

Also are you using correct username and password combination

Regards
Ankur