1. Predefined Events

Event English Variable Name	Event Display Name	Property English Variable Name	Event Property Display Name	Property Value Type	Trigger Time	Description	Remarks
$MPLaunch	Mini Program Launch		$Preset Properties		When the Mini Program is killed and reopened, and sa.quick('appLaunch', options) is called in the corresponding Mini Program lifecycle function, it will be triggered.	Triggered only once when the Mini Program is initialized
		$scene	Launch Scene	String
		$url_path	Page Path	String
		$is_first_time	Is First Time	Boolean
		$utm_source	String	Advertising Campaign Source
		$utm_medium	String	Advertising Campaign Medium
		$utm_term	String	Advertising Campaign Term
		$utm_content	String	Advertising Campaign Content
		$utm_campaign	String	Advertising Campaign Name
$MPShow	Mini Program Display		$Preset Properties		When the mini program is launched, or when it is brought to the foreground from the background and sa.quick('appShow', options) is called in the corresponding mini program lifecycle function.	When the mini program is launched
		$scene	Launch Scene	String
		$url_path	Page Path	String
		$utm_source	String	Advertising Campaign Source
		$utm_medium	String	Advertising Campaign Media
		$utm_term	String	Advertising Campaign Keyword
		$utm_content	String	Advertising Campaign Content
		$utm_campaign	String	Advertising Campaign Name
$MPHide	Miniprogram to Background		$Preset Properties		When user exits the mini program by clicking the upper-right corner exit button, switching to another App, entering the about page, locking screen, or the mini program process is killed and sa.quick('Hide') is called in the corresponding mini program lifecycle function,	Miniprogram from Foreground to Background
		$event_duration	Duration on page	Value
		$url_path	Page path	String
$MPViewScreen	Mini program page view		$Preset Properties		Triggered when a mini program is launched, a page is opened within a mini program, or when the app is brought to the foreground from the background	Called each time a page is opened	Not supported for mini programs developed with the uni-app framework Supported from version v0.6.0 and later
$MPViewScreen	Mini program page view	$url_path	Page path	String		Called each time a page is opened
$MPClick	Mini program element click		$Preset Properties		Triggered when a Mini Program page element is clicked	Only collected when the element being clicked has added listeners using bindtap/bindlongtap/bindlongpress
		$element_id	Element ID	String
		$element_name	Element Name	String
		$element_content	Element Content	String
		$element_type	Element Type	String
		$url_path	Page Path	String

2. Predefined attribute for all events

Field Name	Type	Description	Remark
$lib	String	SDK Type	The value for Baidu Mini Program SDK is SmartProgram
$lib_version	String	SDK Version
$app_id	String	AppID of Baidu Mini Program (Smart Mini Program ID)	Supported from version 0.8.0 and above
$screen_height	Numeric	Screen Height
$screen_width	Numeric	Screen width
$model	String	Device model
$manufacturer	String	Device manufacturer
$os	String	Operating system
$os_version	String	Operating system version
$is_first_day	Boolean Value	Whether it is the first day of visit (true for values between the first visit of new users and midnight on that day, false afterwards, indicating it exists in storage)
$is_login_id	Boolean Value	Whether it is the login ID (determined and added when data is stored)
$ip	String	Attribute carried when SDK sends data request
$timezone_offset	Number	Timezone offset	Supported in version 0.8.0 and above
$country	String	Obtained by IP resolution
$province	String	Obtained from IP resolution
$city	String	Obtained from IP resolution
$network_type	String	Network type
$browser	String	Browser name
$browser_version	String	Browser version
$latest_utm_source	string	The latest source of the last paid advertising campaign, taken from the last source value with a value.
$latest_utm_medium	string	The latest medium of the last paid advertising campaign, taken from the last medium value with a value.
$latest_utm_term	string	The latest term of the last paid advertising campaign, taken from the last term value with a value.
$latest_utm_content	string	The latest content of the last paid advertising campaign, taken from the last content value with a value.
$latest_utm_campaign	string	The latest campaign name of the last paid advertising campaign, taken from the last campaign name value with a value.
$latest_scene	String	Latest launch scene value

3. Predefined user attribute

Attribute name	Attribute type	Default display name	Description	Remark
$first_visit_time	Time	First visit time	Assigned when a new user visits the mini program for the first time	Because the settings of these attributes are only applied to new users when they first visit the mini program, new users are generally identified by anonymous ID to track their behaviors. If the association between login ID and anonymous ID fails, the login ID will not have values from these attributes.
$utm_source	String	First ad campaign source	These user attributes are collected only when using the mini program channel tracking and when new users access the program through channels with utm parameters for the first time. Existing users will not have these attributes even if they access the program through channels. For marking new and existing users, please refer to this document: New User and First-Day First-Time Marking
$utm_medium	String	First Advertising Campaign Medium
$utm_term	String	First Advertising Campaign Keyword
$utm_content	String	First Advertising Campaign Content
$utm_campaign	String	First Advertising Campaign Name