# 附录
[Topic属性表](https://support.huaweicloud.com/api-smn/smn_api_a1000.html)
:
[通用请求返回值](https://support.huaweicloud.com/api-smn/smn_api_63000.html)
:
[错误码](https://support.huaweicloud.com/api-smn/ErrorCode.html)
:
[国家码和地区码](https://support.huaweicloud.com/api-smn/smn_api_a3000.html)
: