1. Presets Events

English Variable Name	Event Display Name	English Variable Name of Property	Property Display Name of Event	Type of Property Value	Example or Description of Property Value	Trigger Timing	Description	Corresponding Lifecycle
$MPLaunch	Mini Program Launch		$Preset Properties			Triggered when the mini program is launched after being killed and reopened, and sa.quick('appLaunch', options) is called in the corresponding mini program lifecycle function	Triggered once when the mini program initialization is completed	App.onLaunch
		$scene	Launch Scene	String
		$url_path	Page Path	String
		$is_first_time	Is First Time	Boolean
		$utm_source	Advertising Campaign Source	String	Version 0.8 and above
		$utm_medium	Advertising Campaign Medium	String	0.8 and above versions
		$utm_term	Ad Campaign Keywords	String	0.8 and above versions
		$utm_content	Ad Campaign Content	String	0.8 and above versions
		$utm_campaign	Ad Campaign Name	String	0.8 and above versions
$MPShow	Mini Program Display		$predefined property			Mini program start, or enter the foreground from the background and call sa.quick('appShow', options) in the corresponding mini program lifecycle function.	Launching Mini Program	App.onShow
		$scene	Launch Scene	String
		$url_path	Page Path	String
		$utm_source	Ad Campaign Source	String	Version 0.8 and above
		$utm_medium	Ad Campaign Medium	String	Version 0.8 and above
		$utm_term	Advertising Campaign Term	String	Version 0.8 and above
		$utm_content	Advertising Campaign Content	String	Version 0.8 and above
		$utm_campaign	Advertising Campaign Name	String	Version 0.8 and above
$MPHide	On Mini Program Background		$Predefined Property			Triggered when clicking the exit button at the top right corner of the miniprogram, related app goes into the background, entering the "About" page of the miniprogram, phone screen locked, and when the miniprogram process is killed and sa.quick('Hide') is called in the corresponding miniprogram lifecycle function.	Miniprogram goes from foreground to background	App.onHide
		$event_duration	User Dwell Time	Value	The time from $MPShow to $MPHide when the Mini Program is sent to the background or closed
		$url_path	Page path	String

2. Predefined properties for all events

Field Name	Type	Description	Remarks
$lib	String	SDK Type	The value for Xiaohongshu Mini Program SDK is `XHSMini`
$lib_version	String	SDK Version
$app_id	String	Mini Program AppID for Xiaohongshu	Need to pass appid when initializing the SDK by calling the init method
$screen_height	Number	Screen height
$screen_width	Number	Screen width
$model	String	Device model
$manufacturer	String	Device manufacturer
$os	String	Operating System
$os_version	String	Operating System Version
$is_first_day	Boolean	Whether it is the first day of visit (true for values between the first visit of a new user and midnight, false afterwards, indicating it is stored in storage)
$is_login_id	Boolean	Whether it is a login ID (determined and added during data storage)
$ip	String	Property carried in SDK data request
$timezone_offset	Numeric	Timezone offset	Version 0.8 and above
$country	String	Obtained by IP resolution
$province	String	Obtained by IP resolution
$city	String	Obtained by IP resolution
$network_type	String	Network type
$browser	String	Browser name parsed from UA
$browser_version	String	Browser version parsed from UA
$latest_utm_source	String	Latest paid advertising campaign source	0.8 and above versions
$latest_utm_medium	String	Latest paid advertising campaign medium	0.8 and above versions
$latest_utm_term	String	Latest paid advertising campaign term	Version 0.8 and above
$latest_utm_content	String	Latest paid advertising campaign content	Version 0.8 and above
$latest_utm_campaign	String	Latest paid advertising campaign name	Version 0.8 and above
$latest_scene	String	Latest launch scene value	0.8 and above