1# NotificationSorting 2 3The **NotificationSorting** module provides APIs for defining the sorting information of active notifications. 4 5> **NOTE** 6> 7> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8 9## Attributes 10 11**System capability**: SystemCapability.Notification.Notification 12 13**System API**: This is a system API and cannot be called by third-party applications. 14 15| Name | Type | Mandatory| Description | 16| -------------------- | --------------------- | --- | ------------------------------------------ | 17| slot | [NotificationSlot](js-apis-inner-notification-notificationSlot.md) | Yes | Notification slot type. | 18| level | number | Yes | Notification level. If this parameter is not set, the default value is used based on the notification slot type.| 19| desc | string | Yes | Description of the notification slot. | 20