for client credentials, you'll need to put the scope in the "Token endpoint config" section, not the "Authorization endpoint config".
If I do not get an error message or anything, does that mean it authorized?
You should see the Access Token and potentially Access Token Expiration fields visible/populated with something. Depending on if your OAuth2 endpoint supports refresh tokens and/or expiration times for access tokens, what you see might vary, but you should see at least something populated (see below)
If you're not seeing data populated there, it likely means there's further issues with auth, you'd have to look into the JCC logs (the logs on the JCC machine) to know for sure what the issue is there, but generally you should be able to make the connection that no errors means authorized.
