OIC3 endpoint from PostMan 401 Unauthorized Error

Hi Team,

We have an integration in OIC3 which Runs without issues in OIC. But the same OIC generated End Point giving 401 Unauthorized Error in POSTMAN.
We tried with client credentials authentication and we are able to generate the token but failed during call.

At high level, we did

1. Set up your application in IDCS
2. Ensure to allow Client Credentials grant type
3. Add scopes to your application
4. Add your application to OIC roles
5. Set up Postman OAuth

Please kindly guide us.

Thanks,

SGU