Authentication with OAuth 2 for EPM REST API Automation

Hi Team,

I’m developing EPM REST API automation using OAuth authentication. I’m following the steps from Oracle document REST API authentication with OAuth 2, including FAQs (frequently asked questions).

The authentication was working until two weeks ago. After that, the authentication started returning a 401 Authorization Required error.

I initially thought the issue was due to the access token expiring, so I tried to regenerate the access token and I was getting unauthorized_client error. I got the new client ID. I was able to generate an access token using the new client ID, but when I run the REST API using the access token , it still returns the same 401 Authorization Required error.