impact_details field

impact_details field

Hola chicos, tengo un problema con la API del service desk plus. Mi problema es que tengo el siguiente JSON que meto en "Input Data" en el apartado View all Requests.

{
    "list_info": {
        "row_count": 100,
        "search_criteria": {
            "field": "udf_fields.udf_pick_301",
            "condition": "is",
            "value": "DEACERO"
        },
        "fields_required": [
            "udf_fields.udf_pick_301",
            "subject",
            "status",
            "request_type",
            "subcategory",
            "udf_fields.udf_mline_1809",
            "udf_fields.udf_sline_1810",
            "impact_details"
        ]
    }
As you know, the "fields_required" object is going to obtain and render the fields that I am specifying, and with all the fields that I specify it works, but when I add the "impact_details" field it sends me this error and that is specifically when I add that field. Does anyone have any idea what it could be?
This is the error.

 "response_status": {
        "status_code": 4000,
        "messages": [
            {
                "status_code": 4001,
                "type": "failed",
                "message": "Datos de entrada no válidos",
                "fields": [
                    "impactdetails"
                ]
            }
        ],
        "status": "failed"
    }
}

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