api Business Role - Read

[Diana_Canon]

Buenos días, alguien se ha conectado a la API Business Role - Read (Try Out | Rol de Negocio - Leer | SAP Business Accelerator Hub)? , tengo la duda porque cuando se hace la prueba incluso desde la página del hub de SAP Business Accelerator sale el error de autenticación, ¿tal vez alguien sabe cómo solucionarlo?

{
  "error": {
    "code": "/IWBEP/CM_V4_COS/011",
    "message": "No authorization to access service group 'APS_IAM_API_BROLE_READ'",
    "@SAP__common.ExceptionCategory": "Authorization_Error",
    "innererror": {
      "ErrorDetails": {
        "@SAP__common.Application": {
          "ComponentId": "BC-SRV-APS-IAM",
          "ServiceRepository": "SRVD_A2X",
          "ServiceId": "APS_IAM_API_BROLE_READ",
          "ServiceVersion": "0001"
        },
        "@SAP__common.TransactionId": "25669476CF940270E0066999F2D658D5",
        "@SAP__common.Timestamp": "20240719144729.364287",
        "@SAP__common.ErrorResolution": {
          "Analysis": "Use ADT feed reader \"SAP Gateway Error Log\" or run transaction /IWFND/ERROR_LOG on SAP Gateway hub system and search for entries with the timestamp above for more details",
          "Note": "See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)"
        }
      }
    }
  }
}
I am very grateful if you can help me!