[Resolved] Notice about service outage for the LINE Platform
2024/02/16

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


[Resolved] Notice about service outage for LINE Login
2023/12/19

We'd like to inform you about a service outage regarding LINE Login. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of outage De...


LINE SDK for Android v5.10.0 released
2023/12/14

We've released LINE SDK for Android v5.10.0. In this release, we've improved the method of generating and storing secret keys used for encryption and decryption of access tokens, etc. In addition, the...


Notification regarding information leakage due to unauthorized access and its impact on LINE Developers
2023/12/05

As announced on November 27, 2023, LY Corporation has discovered that there has been unauthorized access of the company’s systems by a third party, leading to information leakage of users, business pa...


We've discontinued providing LINE SDK for iOS Objective-C
2023/10/26

We've discontinued providing LINE SDK for iOS Objective-C as of October 26, 2023. We've already finished updating LINE SDK for iOS Objective-C to v5.0 on 20 November 2018, and after providing sufficie...


The names of "Bot link feature" and "Linked OA" have been changed in the LINE Developers Console
2023/09/06

We've changed the names of features in the LINE Developers Console. Changes The names of the Bot link feature and the Linked OA have been changed. Due to the name change, we've changed the location of...


Default setting of require two-factor authentication when creating a channel has been changed to on
2023/07/26

When creating a LINE Login channel and a Blockchain Service channel on the LINE Developers Console, the default setting of Require two-factor authentication has been changed to on. Date of change July...


[Updated] Service providers can now require two-factor authentication for LINE Login
2023/06/28

We have added a function to LINE Login that allows service providers to require two-factor authentication (2FA). If you set a LINE Login channel to require two-factor authentication, users will be re...


[Resolved] Notice about service outage for the LINE Platform
2023/03/02

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


[Updated] We've discontinued providing company internal identifiers of chat rooms to LIFF apps as of February 6, 2023
2023/02/06

As announced on December 27, 2022 and January 25, 2023, we've discontinued providing company internal identifiers of chat rooms (one-on-one chat ID, group ID, and room ID) to LIFF apps as of February...


LINE SDK for Android v5.8.1 released
2023/02/02

We've released LINE SDK for Android v5.8.1. In this release, we've made several changes, including the removal of the android:allowBackup property. The android:allowBackup property sets whether an...


Providing company internal identifiers of chat rooms to LIFF apps will be discontinued on February 6, 2023
2023/01/25

As announced on December 27, 2022, we'll discontinue providing company internal identifiers of chat rooms (one-on-one chat ID, group ID, and room ID) to LIFF apps on February 6, 2023. After reviewing ...


Plans to discontinue providing company internal identifiers of chat rooms to LIFF apps
2022/12/27

In early 2023, we plan to discontinue providing company internal identifiers of chat rooms (one-on-one chat ID, group ID, and room ID) to LIFF apps. After reviewing the functions of LIFF apps, we deci...


[Resolved] Notice about service outage for the LINE Platform
2022/10/11

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


The endpoint for getting user information has been added to the LINE Login
2022/06/03

We've added an endpoint for getting user information to the LINE Login. LINE Login supports OpenID Connect Discovery 1.0 and information about the OpenID provider is available in the OpenID Provider C...


The notation of "Region" of LINE Login channel and LINE MINI App channel has been changed on the LINE Developers Console
2022/06/01

We've changed the notation of Region in the channel settings of LINE Login channel and LINE MINI App channel on the LINE Developers Console. Changes The changes are as follows: You don't need to chang...


[Updated] LINE Login v2.1 is recommended as we'll implement LINE's Two-factor Authentication Switch function
2022/04/26

From the upcoming release of LINE for smartphones version 12.7.0, the Two-factor Authentication Switch function will be added to allow users to enable or disable two-factor authentication (2FA). This...


LINE Login security checklist released
2022/04/11

We've released LINE Login security checklist. When developing an application using LINE Login, you must prepare for potential attacks by third parties and implement the login function without any secu...


The design of the channel consent screen has been changed
2022/03/24

As announced on March 9, 2022, we've changed the design of the channel consent screen. This design change includes the change to display the Company or owner's country or region for a channel on the c...


[Recommended] With the design change of the channel consent screen, configure the company or owner's country or region as soon as possible
2022/03/09

We plan to change the design of the channel consent screen on March 24, 2022. This design change includes the change to display the Company or owner's country or region for a channel on the channel co...


Users can no longer set "Other" as the Company or owner's country or region for the channel
2022/02/24

As announced in the news on February 10, 2022, regarding the Company or owner's country or region, "Other" has been removed from the selectable items. The changes and impact are as follows. Changes an...


[Updated] With the enforcement of the Amended Act on the Protection of Personal Information, companies or owners that manage the LINE Official Account or the authorized apps should configure the country or region in which they are located
2022/02/10

Japanese "Amended Act on the Protection of Personal Information" will be enforced on April 1, 2022. Accordingly, the country or region the of company or owner that manage the LINE Official Account or...


Some of the channel status notations have been changed
2022/02/09

We've changed some notations of the channel status that can be viewed when logging in to the LINE Developers Console. These changes only applied to the status notations in Japanese. There are no chang...


[Resolved] Notice about service outage of the LINE Platform
2021/12/20

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


LIFF and LINE Login have been added to services covered by LINE API Status
2021/11/08

LIFF and LINE Login have been added to the LINE API Status. LINE API Status is a site through which you can check the service availability and outage status of APIs and services that LINE provides. Se...


[Resolved] Notice about service outage for LINE Platform
2021/10/01

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


A parameter has been added to disable Auto login in LINE Login
2021/09/21

As announced on July 12, 2021, for LINE Login, in environments where both Auto login and Single Sign On (SSO) login are available, Auto login takes precedence. As of September 21, 2021, if you want us...


[Resolved] Notice about service outage for LINE Platform
2021/09/06

We'd like to inform you about a service outage regarding PRODUCT. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of outage 1. Se...


[Resolved] Notice about outage for LINE Login and LIFF
2021/09/02

We'd like to inform you about a service outage regarding LINE Login and LIFF. The issue has now been resolved, but we sincerely apologize for any inconvenience that this may have caused. Date and time...


LINE Login button design guidelines have been changed
2021/09/01

LINE Login button design guidelines has been updated to reflect the changes to the LINE APP ICON GUIDELINE. If the LINE Login buttons you are already using is outdated or you are implementing LINE Log...


LINE API emergency maintenance notice
2021/08/17

We will be performing emergency maintenance on LINE APIs as follows. During the maintenance period, some requests using LINE APIs may not be processed properly. We sincerely apologize for any inconven...


[Resolved/Updated] Notice about outage for LINE MINI Apps and LINE Login
2021/08/11

We'd like to inform you about a service outage regarding LINE MINI App. The issue has now been resolved, but we sincerely apologize for any inconvenience that this may have caused. Date and time of o...


[Resolved] Notice about service outage for LINE Platform
2021/08/04

We'd like to inform you about a service outage regarding the LINE Platform. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused. Date and time of ou...


LINE Login v2.0 is deprecated
2021/07/28

LINE Login v2.0 is deprecated. Although the date is yet to be determined, LINE Login v2.0 is scheduled for end-of-life in the future, so we recommend that you use LINE Login v2.1. Once determined, the...


Auto login will take precedence over SSO login for LINE Login
2021/07/12

From July 15, 2021, auto login will take precedence in an environment where both auto login and Single Sign On login (hereafter called SSO login) are enabled for LINE Login. Prioritization of LINE Log...


The APIs for converting MIDs to user IDs will be discontinued at the end of June, 2021
2021/06/15

The APIs for converting MIDs to user IDs will be discontinued at the end of June 2021. The target APIs were temporarily provided to LINE Login v1 developers due to the need to convert MIDs to user ID...


The procedure for issuing an assertion signing key has changed
2021/05/12

As announced on April 1, 2021, the procedure for creating an Assertion Signing Key has changed. Overview These changes have been made to the issuing procedure for safer use of the Assertion Signing Ke...


[Resolved/Updated] Notice about service outage for LINE Login and LIFF/LINE MINI App
2021/04/16

We'd like to inform you about a service outage regarding LINE Login, LIFF, and LINE MINI App. The issue has now been resolved, but we sincerely apologize for any inconvenience that this may have caus...


LINE Login now supports PKCE
2021/04/09

We now support PKCE for LINE Login, which will make the authorization flow of LINE Login v2.1 more secure. What is PKCE PKCE (Proof Key for Code Exchange) is an OAuth2.0 extension specification define...


[Resolved] Notice about service outage for LINE Login
2021/04/07

We'd like to inform you about a service outage regarding LINE Login. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused. Date and time of outage...


The procedure for creating an Assertion Signing Key will be changed
2021/04/01

The procedure for creating an Assertion Signing Key is scheduled to change in early May of 2021. Overview Currently, when you click the Issue button for the Assertion Signing Key in the LINE Developer...


[Resolved] Notice about service outage for LINE Login
2021/03/10

We'd like to inform you about a service outage regarding LINE Login. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused. Date and time of outage...


Social API is now part of LINE login
2020/11/12

Social API will now be treated as a part of LINE Login. See also the new documentation and API reference. - LINE Login documentation - LINE Login v2.1 API reference LINE will continue to improve our s...


[Resolved] Notice about service outage for LINE Login and LINE Front-end Framework
2020/10/19

We'd like to inform you about a service outage regarding LINE Login and LINE Front-end Framework. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have ca...


[Resolved] Notice about service outage for LINE Login and LINE Front-end Framework
2020/10/16

We'd like to inform you about a service outage regarding LINE Login and LINE Front-end Framework. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have ca...


[Resolved] Notice about service outage for LINE Login
2020/09/24

We'd like to inform you about a service outage regarding the LINE Login. We've released a version of LINE that resolved the issue. We sincerely apologize for any inconvenience that this may have cause...


LINE's APIs now support TLS 1.3
2020/07/01

LINE's APIs now support TLS 1.3. Domain names subject to the update - api.line.me - api-data.line.me - access.line.me SSL/TLS supported protocol versions See this table for the differences before and...


[Resolved] Notice about service outage for LINE Login
2020/06/24

We want to inform you about a service outage regarding LINE Login. The issue has now been resolved. We apologize for any inconvenience this may have caused. Date and time of outage Date: June 24, 2020...


The consent screen for LINE Login authorization has changed
2020/04/02

We've revised some of the design and text to make the consent screen of LINE Login easier to see and use. Changes - To make it easier for users to understand what to do on this screen, we've removed t...


LINE URL scheme of 'line://' is deprecated
2020/03/25

line:// is deprecated because it allows a takeover attack of the LINE URL scheme. Use https://line.me/R/ or https://liff.line.me/ instead. A line:// takeover attack is an attack in which a us...


[Resolved] Notice about service outage for LINE Login
2019/12/20

We want to inform you about a service outage regarding LINE Login. The issue has now been resolved. We apologize for any inconvenience this may have caused. Date and time of outage Date: December 19, ...


New LINE Login notification message
2019/12/06

When a user logs in to a site that uses LINE Login v2.1, the content of the notification from the Official LINE account will be different. Before, the notification differed depending on the login meth...


New ID token verification endpoint released
2019/10/25

When your back-end server receives an ID token originating from LINE Login v2.1 or the LINE SDK, you should verify that the ID token is authentic. Previously, you had to use a JWT library or write you...


Notice about system maintenance
2019/09/26

We're performing system maintenance at the below time. We apologize for any inconvenience. Scheduled maintenance time September 26, 2019 16:20 - 16:50 (UTC+9) The maintenance will only last a few seco...


LINE SDK v4.x end-of-life on December 12th, 2019
2019/09/13

December 12th, 2019 marks the end-of-life date for LINE SDK v4.0 for Android and LINE SDK v4.1 for iOS (from hereon collectively called LINE SDK v4.x). On that date, we'll remove from this site the fo...


[Resolved] Notice about service outage for LINE Login
2019/07/18

We want to inform you about a service outage regarding LINE Login. The issue has now been resolved. We apologize for any inconvenience this may have caused. Date and time of outage Date: July 18, 2019...


LINE SDK for Flutter released
2019/06/27

We've released a new LINE SDK for Flutter. This SDK is a Flutter plugin that lets you access the functions of LINE SDK for iOS and LINE SDK for Android in your Flutter app with Dart. For details, see ...


LINE Login: new parameters and properties added
2019/06/26

We've added new parameters and properties to LINE Login v2.1: - The parameter ui_locales lets you specify the display language and script for LINE Login. - The property amr specifies the authentic...


[Resolved] Notice about service outage for LINE Login
2019/06/17

We'd like to inform you about a service outage regarding LINE Login. The issue has now been resolved. We apologize for any inconvenience that this may have caused. Date and time of outage Date: June 1...


Notice about system maintenance
2019/03/01

We will perform maintenance for LINE Login and the Social API. We apologize for any inconvenience caused by this. Scheduled maintenance time March 05, 2019 05:30 - 06:30 (UTC+9) Impact API operations ...


[Resolved] Notice about service outage for LINE Login and the Social API
2019/03/01

We'd like to inform you about a service outage regarding LINE Login and the Social API. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused. Date...


LINE Login: You can log in with a QR Code
2019/02/05

Web apps that use LINE Login v2.1 now allow users to log in by scanning a QR code on the login screen. They can scan the QR code with LINE on their smartphones. As before, they can also log in with th...


The behavior of a consent screen displayed to LINE Login users has changed
2018/11/22

The behavior of a consent screen displayed to users at login has been changed when you use LINE Login to request your users to grant your app permission to get their email address. Previously, when a ...


LINE SDK 5.0.0 released
2018/11/20

The LINE SDKs 5.0.0 for Android, iOS Swift, and iOS Objective-C have been released. For installation and usage instructions, see the following guides: - LINE SDK for Android guide - LINE SDK for iOS g...


[Resolved] Notice about service outage for LINE Login and the Social API
2018/06/26

We'd like to inform you about a service outage regarding LINE Login and the Social API. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused. Date...


New permission to get users' email address released
2018/02/28

Now you can request users who log in using LINE Login to grant your app the permission to get their email address. To do so, you first need to apply for the permission in the LINE Developers Console. ...


LINE Login v1 to be discontinued
2018/02/28

Note: This notice only applies to LINE Login v1 users. These changes do not apply if you are using the latest v2.1 or v2 endpoints. Starting from March 31, 2018 we will start terminating LINE Login V1...


New article on converting an MID to a user ID
2018/02/27

Users are identified using a user ID in LINE Login v2 or later instead of an MID in v1. If you have integrated LINE Login v1 into your app and want to migrate it to v2 or later, you need to convert MI...


LINE Login v1 to be discontinued
2017/12/05

Note: This notice only applies to LINE Login v1 users. These changes do not apply if you are using the latest v2.1 or v2 endpoints. We will be discontinuing the LINE Login v1 endpoints listed below on...


LINE URL scheme information released
2017/11/27

We've added an article about the LINE URL scheme to our LINE Login and Messaging API documentation. You can use the URL schemes to help your users navigate to specific content such as the camera, loca...


Link your bot to your LINE Login channel
2017/11/21

We've added an option to display a prompt to let you display an option for users to add your bot as a friend when logging in to your app with LINE Login. To do this, first, link a bot to your LINE Log...


LINE Login and Messaging API glossaries
2017/11/10

To help you better understand the terms and concepts used in our documentation, we've added glossaries for both LINE Login and Messaging API. Check them out using the links below. - LINE Login glossar...


[Resolved] Notice about LINE Login service outage
2017/10/19

This is a notice to inform you about a recent service outage for LINE Login. The issue has now been resolved but we apologize for any inconvenience that this may have caused. Date and time Date: Octob...


LINE Login v2.1 released
2017/09/28

We have released LINE Login v2.1 which provides new features to make it easier for you to implement a login feature to your application. The new version adds support for the OpenID Connect 1.0 specifi...


Changes to the LINE Login review criteria
2017/04/13

The LINE Login review criteria has been modified. Up until now, a review was required to change the status of LINE Login channels from "developing" to "published". However, from now on, LINE Login cha...


New versions of Web Login and the LINE SDK released
2017/01/24

New versions of Web Login, LINE SDK for Android, and LINE SDK for iOS have been released. Details of each release are outlined below. Web Login v2 Key changes: - Endpoint URLs contain "v2" instead of ...


Specification change to API postponed
2016/12/13

The date of the specification change to LINE Login (as stated in the November 22 post) will be postponed from December 15 to December 19. The details of the specification change as specified in the ea...


Important: Specification change to API
2016/11/22

Based on the OAuth 2.0 specification, we will add parameters [error, state] to the error response of LINE Login authentication. These parameters will be added to the error response sent to the callbac...


The LINE SDK for iOS 3.2.1 released and the LINE starter application revised
2016/10/07

The LINE SDK for iOS has been updated to version 3.2.1. You can download it from the LINE SDK archives on the following page: Download LINE SDK Changes - LineAdapter+Login.framework and LineAdapterUI....


LINE SDK for iOS version 3.1.17 released
2015/12/22

The LINE SDK for iOS has been updated to version 3.1.17. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Fixed an issue where return erro...


LINE SDK for iOS version 3.1.15 released
2015/11/06

The LINE SDK for iOS has been updated to version 3.1.15. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Fixed app-to-app authentication ...


LINE SDK for iOS version 3.1.14 released
2015/10/08

The LINE SDK for iOS has been updated to version 3.1.14. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Fixed error when building for su...


Settings for iOS 9 or later
2015/09/15

For developers developing applications with the iOS 9 SDK, please use the following settings to ensure that your application works with iOS 9. iOS - Settings for iOS 9 or later We will continue to pro...


Specification change to API completed
2015/09/14

The specifications of the following API has been changed as shown below as announced on August 31. [API]\ https://api.line.me/v1/oauth/accessToken [Changes]\ The expires_in value will be displayed in ...


LINE SDK for iOS version 3.1.13 released
2015/08/31

The LINE SDK for iOS has been updated to version 3.1.13. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - The "refreshWithResultBlock" met...


Important: Specification change to API
2015/08/31

We will be making changes to the specifications of an API on the LINE Login Platform. [API]\ https://api.line.me/v1/oauth/accessToken [Changes]\ The expires_in value will be displayed in seconds inste...


Description of the expires_in property modified
2015/08/21

The description of the expiresin property has been modified. This change can be found in the Integrating Web Login page under the Retrieving Access Tokens section. The previous description for the exp...


LINE Starter Application for iOS and Android released
2015/08/17

The LINE Starter Application for iOS and Android has been released. The LINE Starter Application provides examples to help you get started on integrating the LINE SDK into your application. The source...


LINE SDK for iOS version 3.1.12 released
2015/08/06

The LINE SDK for iOS has been updated to version 3.1.12. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Added new endpoints for the LINE...


LINE SDK for iOS version 3.1.10 released
2014/12/22

The LINE SDK for iOS has been updated to version 3.1.10. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Modified to specify "kSecAttrAcc...


LINE SDK for iOS version 3.1.9 released
2014/12/18

The LINE SDK for iOS has been updated to version 3.1.9. You can download it from the LINE SDK archives on the following page: Resources - Download LINE SDK Changes: - Can no longer be used with iOS 4....