# Notification Kit（用户通知服务）

* [ArkTS API](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/notification-arkts)  
* [C API](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/notification-c)  
* [错误码](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/notification-arkts-errcode)