Hi, I am new to the Identity App and Rest APIs. I am attempting to access the /osp/a/idm/auth/oauth2/grant URL to obtain an access token. I am using the PowerShell Invoke-WebRequest command to make the call and I keep getting a 401 Unauthorized error. I am guessing I have the wrong credentials entered but I am not sure where to configure or find the credentials. Any advise would be appreciated.
Documentation I have been using: