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Quick Tracking:Preset Events and Preset Properties

Last Updated:Jun 17, 2026

Quick Tracking provides preset events for common user actions and preset properties that are automatically attached to every reported event.

Event name

Event code

Properties

Property meaning

Implementation

Collection Time

Application startup events

$$_app_start

Start time

Client time when the start event occurred

Manual collection, call trackAppStart

When the app starts

Launch Page

Pages opened at startup

Tracking method

Manual tracking

Application exit event

$$_app_end

Exit Time

Client time when the exit event occurred

Manual collection, call trackAppEnd

When the app exits

Usage duration

Duration from app start to exit

Exit Page

Page displayed at exit

Tracking method

Manual tracking

Page browsing events

$$_page_end

Page exit time

Client time when the page exits

Manual collection. Call the onPageStart and onPageEnd methods in pairs.

Reported when the page exits

Page encoding

The pageName value set via the API

Page Entry Time

Client time at page entry

Page Stay Time

Time difference between page exit time and page entry time

Source page encoding

Previous Page Encoding

Tracking method

Manual tracking

User property upload

$$_user_profile

Page encoding

Page encoding during manual collection

Manual collection, call uploadUserProfile

Reported when manually called

Source page encoding

Previous Page Encoding

Tracking method

Manual tracking

Preset Properties

Preset properties are automatically included in every event, regardless of the collection method.

Attribute

Property Key

Collection Time

Device ID

$default_device_id

Initialize the SDK

Custom device ID

$device_id

After setCustomDeviceId is called, collected when an event is triggered

Application user ID

$user_id

After onProfileSignIn is called, collected when an event is triggered

Device vendor

dmf

Initialize the SDK

Device model

dm

Initialize the SDK

Operating system

os

Initialize the SDK

Operating system version

ov

Initialize the SDK

Language

lang

Initialize the SDK

Resolution

resolution

Initialize the SDK

Time zone

tzone

Initialize the SDK

Application platform

platform

Initialize the SDK

Network type

access

Initialize the SDK

Network subtype

access_subtype

Initialize the SDK

Country

country_name

When an event is reported to the server

Province

province_name

When an event is reported to the server

City

city_name

When an event is reported to the server

Application version

apv

Initialize the SDK

Application ID

ak

Initialize the SDK

SDK Version

skv

Initialize the SDK

SDK type

skt

Initialize the SDK

Application Channel

channel

Initialize the SDK

Event unique ID

uuid

When an event is triggered

Event code

id

When an event is triggered

Client time at event trigger

ts

When an event is triggered

Server-side event trigger time

server_timestamp

When an event is reported to the server

Page code at event trigger

page_name

When an event is triggered

Source page code at event trigger

ref_page_name

When an event is triggered

Log number

rank

When an event is triggered

Current Page Path

url

After active configuration, when an event is triggered

Source Page Path

ref_url

After active configuration, when an event is triggered

Event tracking method

track_type

When an event is triggered