What role is required to use Restful API?

Summary

What role is required to use Restful API?

Content

Dear all,

What role is required to use Restful API? Is "Human Capital Management Integration Specialist" role the must?  Pls kindly help. Thank you!

Below is my tries.

 

1st try => "Employee" abstract role didn't work

Steps:

1. Based on Restful API document (https://docs.oracle.com/en/cloud/saas/global-human-resources/18c/farws/Authorize.html), in HCM Cloud, I copied "Employee" abstract role, and added the functional privilege "Use REST Service - Employees" to the copied role.

2. In SoapUI, I used any employee's authorization (e.g. Paula.Yang) to get the "employees" resource at "