# NotificationCommonDef The **NotificationCommonDef** module provides APIs for describing the **BundleOption** information, that is, the bundle information of a specified application. > **NOTE** > > The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version. ## BundleOption **System capability**: SystemCapability.Notification.Notification | Name | Type | Read Only| Optional| Description | | ------ | ------ | ----| -- | ------ | | bundle | string | No | No| Application name.| | uid | number | No | Yes| UID of an application, which is obtained from [ApplicationInfo](../apis-ability-kit/js-apis-bundleManager-applicationInfo.md). The default value is **0**.|