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Mobile Platform as a Service:Android/iOS behavior tracking

Last Updated:Jan 27, 2026

This topic describes the client-side and server-side log models for behavior tracking.

Behavior tracking includes:

  • Activation reporting tracking

  • Automatic page tracking

  • Backgrounding tracking

Note

A hyphen (-) in the **Meaning** field indicates that the field is not used.

Client-side log model

Note

The client and backend share the same log model.

Activation reporting tracking

Ordinal number

Example

Field meaning

00

D-VM

Log header. The value is fixed to D-VM.

01

2018-12-19 10:35:47.196

Client log time.

02

A11111111****_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

03

1.0.1

Client version, which is the application version.

04

2

Log tracking SDK version. The value is fixed to 2.

05

41111111111****|81111111111****

Format: IMSI|IMEI. This field has a value only for Android devices.

Note

  • For Android 10 and later, IMSI and IMEI are not obtained.

  • For systems earlier than Android 10, IMSI and IMEI are obtained if the READ_PHONE_STATE permission is granted and the user agrees to the privacy protocol.

  • If IMSI and IMEI are not obtained, a timestamp generated at the first launch after installation is used instead.

06

d5557b75-ff80-4aab-86a6-9b1a522b****

Session ID.

07

user****

The ID generated after a client-side user registers. This is the user ID.

08

event

Identifies the behavior type. The value is fixed to event.

09

-

-

10

first

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

11

-

-

12

-

-

13

-

-

14

-

-

15

reportActive

The value is fixed to reportActive.

16

-

-

17

-

-

18

-

-

19

-

-

20

-

-

21

-

-

22

-

-

23

-

-

24

-

-

25

Wn11111111111111111****

UTDID, which is the device ID.

26

-

-

27

-

-

28

-

-

29

-

-

30

-

-

31

-

-

32

-

-

33

vivo Xplay3S

Device model.

34

4.4.2

Operating system version.

35

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

36

-

-

37

alipay

Channel ID.

38

zh-CN

Operating system language.

39

0

Hotpatching package version number.

40

4

Number of CPU cores.

41

2265

Maximum CPU frequency. Unit: MHz.

42

2853

Memory size. Unit: MB.

43

-

-

44

-

-

45

2560x1440

Screen resolution.

46

-

-

47

-

-

Automatic page tracking

Ordinal number

Example

Field meaning

00

D-VM

Log header. The value is fixed to D-VM.

01

2018-12-19 10:35:47.196

Client log time.

02

A11111111****_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

03

1.0.1

Client version, which is the application version.

04

2

Log tracking SDK version. The value is fixed to 2.

05

41111111111****|81111111111****

Format: IMSI|IMEI.

06

d5557b75-ff80-4aab-86a6-9b1a522b****

Session ID.

07

user****

The ID generated after a client-side user registers. This is the user ID.

08

auto_openPage

Identifies the behavior type. The value is fixed to auto_openPage.

09

-

-

10

Referer_Page_ID|Referer_Page_Position

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

11

-

-

12

-

-

13

-

-

14

-

-

15

Current_Page_ID

Current page ID.

16

-

-

17

-

-

18

-

-

19

-

-

20

-

-

21

-

-

22

-

-

23

-

-

24

9180

Page dwell time. Unit: milliseconds.

25

Wn111111111111111****

UTDID, which is the device ID.

26

-

-

27

Current_Page_Position

Current page position ID.

28

-

-

29

-

-

30

-

-

31

-

-

32

-

-

33

vivo Xplay3S

Device model.

34

4.4.2

Operating system version.

35

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

36

-

-

37

alipay

Channel ID.

38

zh-CN

Operating system language.

39

0

Hotpatching package version number.

40

4

Number of CPU cores.

41

2265

Maximum CPU frequency. Unit: MHz.

42

2853

Memory size. Unit: MB.

43

-

-

44

-

-

45

2560x1440

Screen resolution.

46

-

-

47

-

-

Backgrounding tracking

Ordinal number

Example

Field meaning

00

D-VM

Log header. The value is fixed to D-VM.

01

2018-12-19 10:35:47.196

Client log time.

02

A11111111****_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

03

1.0.1

Client version, which is the application version.

04

2

Log tracking SDK version. The value is fixed to 2.

05

41111111111****|81111111111****

Format: IMSI|IMEI.

06

d5557b75-ff80-4aab-86a6-9b1a522****

Session ID.

07

user****

The ID generated after a client-side user registers. This is the user ID.

08

auto_event

Identifies the behavior type. The value is fixed to auto_event.

09

-

-

10

first

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

11

-

-

12

-

-

13

-

-

14

-

-

15

-

-

16

-

-

17

-

-

18

-

-

19

-

-

20

-

-

21

leavehint

The value is fixed to leavehint.

22

uid=1****^pid=1****^stayTime=266083

Format: key=value^key=value...

`stayTime` is the page dwell time. Unit: milliseconds.

23

-

-

24

-

-

25

Wn1111111111111****

UTDID, which is the device ID.

26

-

-

27

-

-

28

-

-

29

-

-

30

-

-

31

-

-

32

-

-

33

vivo Xplay3S

Device model.

34

4.4.2

Operating system version.

35

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

36

-

-

37

alipay

Channel ID.

38

zh-CN

Operating system language.

39

0

Hotpatching package version number.

40

4

Number of CPU cores.

41

2265

Maximum CPU frequency. Unit: MHz.

42

2853

Memory size. Unit: MB.

43

-

-

44

-

-

45

2560x1440

Screen resolution.

46

-

-

47

-

-

Server-side log model

Activation reporting tracking

Ordinal number

Example

Field meaning

01

2018-12-19 10:35:47.996

Server-side log time.

02

ip=182.xx.xxx.7^country=China^province=Beijing^city=Beijing^district=Chaoyang District

Contains information such as the server-side request IP address, country, province, and city.

03

2018-12-19 10:35:47.196

Client log time.

04

A11111111****_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

05

1.0.1

Client version, which is the application version.

06

2

Log tracking SDK version. The value is fixed to 2.

07

41111111111****|81111111111****

Format: IMSI|IMEI. This field has a value only for Android devices.

Note

  • For Android 10 and later, IMSI and IMEI are not obtained.

  • For systems earlier than Android 10, IMSI and IMEI are obtained if the READ_PHONE_STATE permission is granted and the user agrees to the privacy protocol.

  • If IMSI and IMEI are not obtained, a timestamp generated at the first launch after installation is used instead.

08

d5557b75-ff80-4aab-86a6-9b1a522b****

Session ID.

09

user****

The ID generated after a client-side user registers. This is the user ID.

10

event

Identifies the behavior type. The value is fixed to event.

11

-

-

12

first

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

13

-

-

14

-

-

15

-

-

16

-

-

17

reportActive

The value is fixed to reportActive.

18

-

-

19

-

-

20

-

-

21

-

-

22

-

-

23

-

-

24

-

-

25

-

-

26

-

-

27

Wn111111111111****

UTDID, which is the device ID.

28

-

-

29

-

-

30

-

-

31

-

-

32

-

-

33

-

-

34

-

-

35

vivo Xplay3S

Device model.

36

4.4.2

Operating system version.

37

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

38

-

-

39

alipay

Channel ID.

40

zh-CN

Operating system language.

41

0

Hotpatching package version number.

42

4

Number of CPU cores.

43

2265

Maximum CPU frequency. Unit: MHz.

44

2853

Memory size. Unit: MB.

45

-

-

46

-

-

47

2560x1440

Screen resolution.

48

-

-

49

-

-

Automatic page tracking

Ordinal number

Example

Field meaning

01

2018-12-19 10:35:47.996

Server-side log time.

02

ip=182.xx.xxx.7^country=China^province=Beijing^city=Beijing^district=Chaoyang District

Contains information such as the server-side request IP address, country, province, and city.

03

2018-12-19 10:35:47.196

Client log time.

04

A11111111****_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

05

1.0.1

Client version, which is the application version.

06

2

Log tracking SDK version. The value is fixed to 2.

07

41111111111****|81111111111****

Format: IMSI|IMEI.

08

d5557b75-ff80-4aab-86a6-9b1a522b****

Session ID.

09

user****

The ID generated after a client-side user registers. This is the user ID.

10

auto_openPage

Identifies the behavior type. The value is fixed to auto_openPage.

11

-

-

12

Referer_Page_ID|Referer_Page_Position

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

13

-

-

14

-

-

15

-

-

16

-

-

17

Current_Page_ID

Current page ID.

18

-

-

19

-

-

20

-

-

21

-

-

22

-

-

23

-

-

24

-

-

25

-

-

26

9180

Page dwell time. Unit: milliseconds.

27

Wn11111111111111****

UTDID, which is the device ID.

28

-

-

29

Current_Page_Position

Current page position ID.

30

-

-

31

-

-

32

-

-

33

-

-

34

-

-

35

vivo Xplay3S

Device model.

36

4.4.2

Operating system version.

37

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

38

-

-

39

alipay

Channel ID.

40

zh-CN

Operating system language.

41

0

Hotpatching package version number.

42

4

Number of CPU cores.

43

2265

Maximum CPU frequency. Unit: MHz.

44

2853

Memory size. Unit: MB.

45

-

-

46

-

-

47

2560x1440

Screen resolution.

48

-

-

49

-

-

Backgrounding tracking

Ordinal number

Example

Field meaning

01

2018-12-19 10:35:47.996

Server-side log time.

02

ip=182.xx.xxx.7^country=China^province=Beijing^city=Beijing^district=Chaoyang District

Contains information such as the server-side request IP address, country, province, and city.

03

2018-12-19 10:35:47.196

Client log time.

04

A111111111111_IOS-default

Format: Application ID created in the backend_Application platform-workspaceId.

05

1.0.1

Client version, which is the application version.

06

2

Log tracking SDK version. The value is fixed to 2.

07

411111111111111|811111111111111

Format: IMSI|IMEI.

08

d5557b75-ff80-4aab-86a6-9b1a522bbbce

Session ID.

09

user11

The ID generated after a client-side user registers. This is the user ID.

10

auto_event

Identifies the behavior type. The value is fixed to auto_event.

11

-

-

12

first

Format: Referer page ID|Referer page position ID. If the current page is the home page, this field is a hyphen (-) or "first".

13

-

-

14

-

-

15

-

-

16

-

-

17

-

-

18

-

-

19

-

-

20

-

-

21

-

-

22

-

-

23

leavehint

The value is fixed to leavehint.

24

uid=10206^pid=16992^stayTime=266083

Format: key=value^key=value...

`stayTime` is the page dwell time. Unit: milliseconds.

25

-

-

26

-

-

27

Wn11111111111111****

UTDID, which is the device ID.

28

-

-

29

-

-

30

-

-

31

-

-

32

-

-

33

-

-

34

-

-

35

vivo Xplay3S

Device model.

36

4.4.2

Operating system version.

37

WIFI

Network type, such as Wi-Fi, 2G, 3G, or 4G.

38

-

-

39

alipay

Channel ID.

40

zh-CN

Operating system language.

41

0

Hotpatching package version number.

42

4

Number of CPU cores.

43

2265

Maximum CPU frequency. Unit: MHz.

44

2853

Memory size. Unit: MB.

45

-

-

46

-

-

47

2560x1440

Screen resolution.

48

-

-

49

-

-