以请求访问控制GetUser接口为例，成功结果和错误结果示例如下：

成功结果

{
    "ResponseMetadata": {
        "RequestId": "202112021830130102252430810768****",
        "Action": "GetUser",
        "Version": "2018-01-01",
        "Service": "iam"
    },
    "Result": {
        "User": {
            "CreateDate": "20210428T023119Z",
            "UpdateDate": "20211124T100123Z",
            "Status": "active",
            "AccountId": 20000*****,
            "UserName": "demo****",
            "Description": "",
            "DisplayName": "",
            "Email": "******",
            "EmailIsVerify": false,
            "MobilePhone": "******",
            "MobilePhoneIsVerify": false,
            "Trn": "trn:iam::20000*****:user/demo****"
        }
    }
}

请求被正常处理后，返回中会包含ResponseMetadata和Result两部分，字段解释如下：

Result视请求的接口而定，不同的接口会有不同的Result返回。

错误结果

调用失败的返回如下：

{
    "ResponseMetadata": {
        "RequestId": "20211202183645010225243125026D****",
        "Action": "GetUser",
        "Version": "2018-01-01",
        "Service": "iam",
        "Region": "cn-north-1",
        "Error": {
            "CodeN": 100010,
            "Code": "SignatureDoesNotMatch",
            "Message": "The request signature we calculated does not match the signature you provided. Check your Secret Access Key and signing method. Consult the service documentation for details."
        }
    }
}

相较于成功结果，错误结果将不再有Result部分，而ResponseMetadata中将额外出现Error字段，字段解释如下：