Unable to add access profile to user via api

I am using access profile request using v3 api collection as directed over https://community.sailpoint.com/t5/IdentityNow-Articles/IdentityNow-REST-API-Submit-Access-Request/ta-p/72229. But I am getting denial for access request in the Request Centre(My request) post getting success message for API and below is the error message.

Requestor is not authorised to perform request

Can anyone suggest what I permission I need to provide to Admin user.

Hi Vineet,

Can you please provide the following information:

  • request body
  • response status code
  • response body
  • Method of authentication (personal access token, OAuth client credentials, etc)