3526741 - Register Desktop Agent failed with error 403 Forbidden

You assign role collection ProcessAutomationDeveloper to the user, but it is not able to register Desktop Agent:

• When attempting to register an agent from Control Tower, an error message "Unable to configure your agent" is displayed, in the network trace, you can see "403 Forbidden" is returned for request
  https://<subdomain>.<region>.process-automation.build.cloud.sap/api/internal/irpa/galaxy/v1/token/registration/extended 
• When attempting to register an agent from Desktop Agent application directly, it failed with below error:
  {
      "error": {
          "status": 403,
          "code": "SAP_IPA_00043",
          "severity": "error",
          "message": "Access is denied",
          "correlationId": "74148642-e6b8-4fc0-5092-68595ed6db4e",
          "detailsType": "caused-by",
          "details": [
              {
                  "message": "Access Denied"
              }
          ]
      }
  }

• SAP Build Process Automation

SAP Build Process Automation, Agent Registration, Control Tower, ProcessAutomationDelegate, 403 forbidden, SAP_IPA_00043, register Desktop Agent , KBA , BPI-PA , SAP Build Process Automation , Problem