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ID Verification:Native SDK client result codes and sub-codes

Last Updated:Sep 03, 2026

This topic describes the result codes and sub-codes returned by the Native SDK client.

Android

Result code

Billable

Result sub-code (subCode)

Description

1000

Yes

A1000_1

The user completed the face liveness process. The recommended authentication result is pass. This result is for reference only. You can call the server-side CheckResult operation to obtain the final authentication result and proceed to the next step.

1001

Yes

A1001_1

The user completed the face liveness process. The recommended authentication result is fail. This result is for reference only. You can call the server-side CheckResult operation to obtain the final authentication result and the detailed reasons for the failure, and proceed to the next step.

1002

No

A1002_1

Model loading failed / model not ready

A1002_2

The app moved to the background (Home button pressed) and returned to the foreground, and the SDK exited proactively.

A1002_3

SO library loading failed.

A1002_4

SDK busy (previous session not ended).

1003

No

A1003_1

Initialize operation content is empty.

A1003_2

Initialize operation content format error.

A1003_3

Initialization protocol (ExtProtocol) parsing failed

A1003_4

Initialize operation content decryption failed.

A1003_5

Initialize operation failed (Code is not 200, or BizCode is not CODE_INIT_SUCCESS)

A1003_6

Initialize operation OSS is empty.

A1003_7

Empty Context passed.

A1003_8

Empty Protocol passed exception.

1004

No

A1004_1

Front camera exception.

A1004_2

Camera open exception.

A1004_3

Rear camera exception.

1005

No

A1005_1

Initialize operation network exception.

A1005_2

Authentication operation network exception

A1005_3

Authentication operation returned content exception

1006

No

A1006_1

User exited.

A1006_2

User idle timeout exit after 15 minutes.

1007

No

A1007_1

Invalid TransactionId.

1008

No

A1008_1

NFC module missing

A1008_2

OCR module missing

A1008_3

Face module missing

1009

No

Client system time exception

1010

No

A1010_1

The install method was not called before calling verify.

1011

No

Submitted document type error.

1012

No

A1012_1

Recognized document key information missing or format validation failed.

1013

No

Poor image quality.

1014

No

A1014_1

Error count exceeded limit.

1015

No

A1015_1

Android system version too low.

1016

No

A1016_1

Camera permission not obtained.

1017

No

A1017_1

Parameter exception: productCode is empty

2000

No

A2000_1

NFC configuration failed

A2000_2

NFC permission not enabled

2002

No

A2002_1

Device does not support NFC

iOS

Result code

Billable

Result sub-code (subCode)

Description

1000

Yes

A1000_1

The user completed the face liveness process. The recommended authentication result is pass. This result is for reference only. You can call the server-side CheckResult operation to obtain the final authentication result and proceed to the next step.

1001

Yes

A1001_1

The user completed the face liveness process. The recommended authentication result is fail. This result is for reference only. You can call the server-side CheckResult operation to obtain the final authentication result and the detailed reasons for the failure, and proceed to the next step.

1002

No

A1002_1

Model loading failed / model not ready

A1002_3

Module loading exception (OCR or face module missing)

A1002_4

iOS system version lower than 9.0.

A1002_5

Network interface exception.

A1002_6

SDK busy: previous authentication session has not ended.

1003

No

A1003_1

Initialize operation content is empty.

A1003_2

Initialize operation content format error.

A1003_3

Client initialization protocol parsing failed.

A1003_4

Initialize operation content decryption failed.

A1003_5

Initialize operation failed.

A1003_6

Initialize operation OSS is empty.

A1003_7

context is empty.

A1003_8

Passed Protocol exception (decryption succeeded but content unavailable).

1004

No

A1004_1

Front camera exception.

A1004_2

Camera open exception.

A1004_3

Camera permission denied.

1005

No

A1005_1

Initialize operation network exception.

A1005_2

Authentication operation network exception.

1006

No

A1006_1

User exited.

A1006_2

User idle timeout exit after 15 minutes.

1007

No

A1007_1

Invalid authentication ID.

1009

No

A1003_2

Client system time exception

1010

No

A1010_1

The install method was not called before calling verify.

1014

No

A1014_1

Error count exceeded limit

1017

No

A1017_1

Parameter exception: productCode is empty

2000

No

A2000_1

NFC configuration failed

A2000_2

NFC permission not enabled

2002

No

A2002_1

Device does not support NFC