Unsupported OAuth grant type 'Client Credentials'.

[Abhishek SNOW]

HI Techies,

can any one help regarding this "   Unsupported OAuth grant type 'Client Credentials'. " or 'Resource Owner Cred"

this one i am geeting while trying to get auth token

Related Links

Get OAuth Token

I am not able to get auth toke.. what should be the exact problem ...

Regards,

Abhishek

[sergiu_panaite]

Take a look in the UI Action called "Get OAuth Token" as that link is just a UI action.

According to UI action code, it looks to me that 'grant_type' is not set to either 'password' or 'client_credentials' or 'authorization_code'. If it's not one of these then you get that error message.

[Heather White]

I am having a similar issue-but when I changed the code, the UI action isn't working.  Any thoughts?

[adriantan08]

It seems like there's a bug in the UI Action itself.

To get this fixed, I had to edit the UI action "Get OAuth Token".

When you log g_scratchpad.grant_type, its value is actually the Grant Type Label and not the value.

Before:

} else if (grantType === 'authorization_code') {

After:

} else if (grantType === 'authorization_code' || grantType === 'Authorization Code') {

I have yet to reach out to ServiceNow to see what they think about this. 

Hope this helps

[naren19]

Yes, i also ran into same issue, but the g_scratchpad.grant_type for older REST Message seems to be Display Value of Grant Type like Client Credentials/Authorization Code whereas the newer REST Message has the actual value like client_credentials / authorization_code so that's why in UI Action when the condition is checked it got error.
Solution would be creating a new REST Message and then link the OAuth Profile