User Authentication Issue with Server Side Extensions

Summary

I am facing user authorization issues with deploying server side extensions

Content

Hi,

I am trying to deploy a server side extension via Postman, i am running into the error 

    "message": "The user is not authorised to access the resource.",

I have generated a OAuth token as the admin user via https://ccadmin-test-z4za.oracleoutsourcing.com/ccadmin/v1/login

Any pointers on what i could be doing wrong?

Thanks,

Vimal

Version

19.4.12