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In Japan, LINE Ads API will be discontinued in March 2027 due to the discontinuation of LINE Ads

2026/03/31

We would like to inform you that the LINE Ads API will be discontinued in March 2027, following the discontinuation of LINE Ads in Japan.

Scheduled discontinuation date

End of March 2027

The specific discontinuation date will be announced by LINE Ads once it is determined.

Details

For more information about the discontinuation of LINE Ads, see Announcement regarding the launch date of LY Ads Display Ads and platform integration (only available in Japanese) in LINE for Business.

The LINE Ads API will remain available in Taiwan and Thailand. If you are using the LINE Ads API in these regions, see the LINE Ads API documentation.

If you have any questions regarding the discontinuation of the LINE Ads API, contact us at ml-lads-api-support@lycorp.co.jp.

We will continue to work to further improve our services to our customers. Thank you for your understanding.

LINE AdsEnd of life

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Partial content from the LINE API Use Case site has been migrated to the LINE Developers site

Partial content from the LINE API Use Case site has been migrated to the LINE Developers site

2026/03/30

We've migrated partial content from the LINE API Use Case site, which introduced technical information, use cases, client stories, and demo apps related to the LINE Platform, to the LINE Developers site.

The LINE API Use Case site will be closed on March 31, 2026.

Migrated content

  • Practical scenarios and demo apps for the LINE Platform
    • LINE MINI App demos
  • User adoption stories for the LINE Platform
    • Messaging API case studies
    • LINE MINI App case studies

We'll continue to improve the quality of the LINE Developers site and developer documentation to make it even easier for developers to develop services using the LINE Platform.

LINE Developers siteDocs

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In Japan, LINE Ads API will be discontinued in March 2027 due to the discontinuation of LINE Ads
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LIFF v2.28.0 released

LIFF v2.28.0 released

2026/03/24

We've released LIFF v2.28.0.

In LIFF v2.28.0, we've made the following change.

We've added the liff.requestFriendship() method which prompts the user to add the LINE Official Account as a friend

We've added the liff.requestFriendship() method which displays a subwindow that prompts the user to add the LINE Official Account as a friend, or to unblock it.

For more information, see Requesting the user to add the LINE Official Account as a friend or unblock it in the LIFF documentation.

How to update to LIFF v2.28.0

If you're using the CDN edge path (https://static.line-scdn.net/liff/edge/2/sdk.js), you'll automatically update LIFF to v2.28.0.

If you're using an npm package, you can update to v2.28.0 by executing either npm install @line/liff@2.28.0 or yarn add @line/liff@2.28.0.

For more information on integrating the LIFF SDK, see Integrating the LIFF SDK with the LIFF app in the LIFF documentation.

LIFFLINE MINI App

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Partial content from the LINE API Use Case site has been migrated to the LINE Developers site
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[Resolved] Notice about service outage for the LINE Developers Console

[Resolved] Notice about service outage for the LINE Developers Console

2026/03/23

We'd like to inform you about a service outage regarding the LINE Developers Console. The issue has now been resolved. We sincerely apologize for any inconvenience that this may have caused.

Date and time of outage

March 20, 2026 around 11:28 - March 23, 2026 around 11:37 (UTC+9)

Cause of the outage

Server failure

Impact

LINE Developers Console

Details

In the emails sent to invite developers to providers and channels, the URLs for accepting invitations in emails sent on or after around 11:28 on March 20, 2026, all became invalid around 11:37 on March 23, 2026. The issue has now been resolved, and emails containing valid URLs are being sent.

Emails containing invalid URLs sent during the service outage will not be resent via the LINE Developers Console. If you open the URL in the email and see the message "The token used for this invitation has expired", you will need to request a new invitation from a member with provider or channel permissions.

For more information on inviting developers to providers and channels, see Managing roles in the LINE Developers Console documentation.

LINE will continue to improve the quality of its services to prevent future outages. Thank you for your understanding.

LINE Developers ConsoleOutage Report

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LIFF v2.28.0 released
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[Resolved] Notice about service outage for the LINE Platform

[Resolved] Notice about service outage for the LINE Platform

2026/03/19

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 outage

March 19, 2026 around 12:15 - around 12:16 (UTC+9)

Cause of the outage

Server failure

Impact

  • Messaging API
  • LINE Login
  • LIFF/LINE MINI App

Details

These are the main impacts per product:

  • Messaging API
  • LINE Login
  • LIFF/LINE MINI App

Messaging API

  • There were instances where sending webhook events was delayed.
  • Some requests weren't processed properly, resulting in errors with status code 5xx.

Due to this outage, the messages that weren't properly sent even if the API requests succeeded, won't be counted as the LINE Official Account usage fees and the "number of sent messages" that can be confirmed in some way such as the Get number of sent push messages endpoint.

Retrying a failed API request

In some APIs, you can safely retry a request while preventing the same request from being accepted in duplicate by using a retry key (X-Line-Retry-Key) when an error with status code 5xx occurs or when the request times out.

For more information, see Retry failed API requests and Specify the retry key always in the Messaging API documentation.

LINE Login

  • There were instances where LINE Login didn't work per usual.
  • Some requests weren't processed properly, resulting in errors with status code 5xx.

LIFF/LINE MINI App

  • There were instances where LIFF/LINE MINI App couldn't be used per usual.
  • Some requests weren't processed properly, resulting in errors with status code 5xx.

When an outage occurs, we post a preliminary report on the LINE API Status. For more information, see Check the availability of the LINE Platform (LINE API Status) in the LINE Platform basics.

We will continue to improve the quality of our services to prevent future outages. Thank you for your understanding.

Outage ReportLINE PlatformLINE LoginLIFFLINE MINI AppMessaging API

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[Resolved] Notice about service outage for the LINE Developers Console
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As of March 11, 2026, anyone can now publish LINE MINI Apps in Taiwan and Thailand

As of March 11, 2026, anyone can now publish LINE MINI Apps in Taiwan and Thailand

2026/03/11

As of March 11, 2026, anyone who is a permitted customer in the LINE MINI App Policy can create a LINE MINI App channel for services in Taiwan or Thailand.

As a result, LINE MINI Apps whose region to provide the service is Taiwan or Thailand can now be published as unverified MINI Apps.

For more information, see Create a LINE MINI App Channel in the LINE MINI App documentation.

Date of change

March 11, 2026

Regarding verification review for LINE MINI Apps

If the region to provide the service is Taiwan or Thailand, only LINE MINI App channels under a certified provider can apply for the verification review to publish the LINE MINI App as a verified MINI App.

For more information, see Submitting LINE MINI App in the LINE MINI App documentation.

We'll continue to improve the quality of our products and developer documentation to make it easier for developers to create services using the LINE Platform.

LINE MINI App

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[Resolved] Notice about service outage for the LINE Platform
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LINE MINI App Policy has been revised on February 19, 2026

LINE MINI App Policy has been revised on February 19, 2026

2026/02/19

As announced on February 6, 2026, the LINE MINI App Policy has been revised on February 19, 2026.

Date of revision

February 19, 2026

Details of revision

  • Changes related to digital content
  • Clarifications to the privacy policy
  • Other formatting-related updates

Background of the revision

Previously, the sale of virtual items such as digital content was generally prohibited in LINE MINI Apps. However, starting today in Japan, virtual items can now be sold by using the in-app purchase feature, which has become available. Accordingly, the LINE MINI App Policy has been revised.

We'll continue to work to further improve our service to our customers. Thank you for your understanding.

LINE MINI App

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As of March 11, 2026, anyone can now publish LINE MINI Apps in Taiwan and Thailand
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In-app purchase feature for LINE MINI Apps in Japan has been officially released

In-app purchase feature for LINE MINI Apps in Japan has been officially released

2026/02/19

We've officially released the "in-app purchase" feature for LINE MINI Apps in Japan.

The in-app purchase feature allows users to buy digital content offered within LINE MINI Apps.

This feature was initially rolled out to select companies starting in July 2025. With this release, verified MINI Apps can now utilize the in-app purchase feature by applying to use in-app purchase via the LINE Developers Console.

To start using the in-app purchase feature, after submitting an application, you must undergo our in-app purchase review and the verification review.

Release date

February 19, 2026

Release details

The following updates have been released:

  • Apply to use in-app purchase
  • Test payment in a Developing channel
  • Webhook URL configuration and test payment feature tester registration

In-app purchase use conditions

The LINE MINI App must have both "Region to provide the service" and "Company or owner's country or region" set to "Japan" on the LINE MINI App channel.

In-app purchase requirements

  • The LINE MINI App is a verified MINI App (*)
  • LIFF SDK version of the LINE MINI App is 2.26.0 or later
  • The LINE MINI App is opened in the LIFF browser
  • The user has registered a Japanese phone number with their LINE account
  • The user's LINE version is 15.6.0 or later

* Unverified MINI Apps will only work on LINE MINI Apps for Developing and Review.

For more information, see In-app purchase overview in the LINE MINI App documentation and LINE In-App Purchase Terms of Use (for LINE Mini App Provider).

We'll continue to improve the quality of our products and developer documentation to make it easier for developers to create services using the LINE Platform.

LINE MINI AppLINE Developers Console

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LINE MINI App Policy has been revised on February 19, 2026
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Starting on 9 March 2026, edge-to-edge support in the Android version of LINE will affect the layout

Starting on 9 March 2026, edge-to-edge support in the Android version of LINE will affect the layout

2026/02/12

Starting March 9, 2026, Edge-to-edge will be applied to the Android version of LINE.

This may cause buttons and content placed at the bottom of LIFF apps and LINE MINI Apps to overlap with the navigation bar area, potentially impairing usability and visibility. Therefore, we ask developers to check for potential impacts and take necessary actions in advance.

Specification change date

March 9, 2026 (UTC+9)

Target versions

LINE version 26.3.0 or later for Android

Affected LIFF apps/LINE MINI Apps

All LIFF apps and LINE MINI Apps are affected. Also, all of the Size of the LIFF browser—Full, Tall, and Compact—are affected.

Specification changes

Google provides Edge-to-edge enforcement for all apps on Android 15 and later. Accordingly, the Android version of the LINE app will also support edge-to-edge, which will affect LIFF apps and LINE MINI Apps as follows:

Navigation typeBefore (Current)After
Gesture navigationWebView area extends up to the top of gesture navigationWebView area extends to the bottom of the screen

The WebView area remains unchanged in the status bar at the top of the screen.

Impact and requests

This change may cause buttons and content placed at the bottom of LIFF apps and LINE MINI Apps to overlap with the navigation bar area, potentially impairing usability and visibility.

Developers providing LIFF apps and LINE MINI Apps are requested to check the following points by the specification change date:

  • Ensure that elements at the bottom of the screen don't obstruct operation
  • If necessary, use safe-area-inset-bottom to control content that should not overlap with the gesture navigation area

CSS example for handling the navigation area

For environments with WebView version 144 or later, use safe-area-inset-bottom. For environments with WebView version earlier than 144, use --android-safe-area-inset-bottom as a fallback.

css
margin-bottom: var(
  --android-safe-area-inset-bottom,
  env(safe-area-inset-bottom)
);

When the device is in landscape orientation, the behavior remains unchanged. The left and right safe-area-inset and --android-safe-area-inset values will always be set to 0.

We'll continue to work to further improve our service to our customers. Thank you for your understanding.

LIFFLINE MINI App

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In-app purchase feature for LINE MINI Apps in Japan has been officially released
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We've launched Tips for Developers on the LINE Developers site

We've launched Tips for Developers on the LINE Developers site

2026/02/12

We've launched a new content section called Tips for Developers on the LINE Developers site.

What is Tips for Developers

Tips for Developers is a lightweight, easy-to-read content category. It's separate from the documentation and API reference.

The LINE Developers site covers a wide range of products, such as the Messaging API and the LINE MINI App. The documentation also spans many topics. We publish updates in the news section for major feature additions or specification changes. However, we also make many small improvements and additions. There are also many useful existing features that aren’t newly released but are not widely known, along with documentation that explains how to use them.

That's why we started Tips for Developers. It's a place to highlight the small improvements and existing features and documentation that we want developers to know about, as well as best practices for development, case studies and other things that aren't new information, but deserve a fresh spotlight.

We'll continue to improve the quality of the LINE Developers site and developer documentation to make it even easier for developers to develop apps using our services.

LINE Developers siteDocs

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Starting on 9 March 2026, edge-to-edge support in the Android version of LINE will affect the layout
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LINE MINI App Policy will be revised on February 19, 2026

LINE MINI App Policy will be revised on February 19, 2026

2026/02/06

LINE MINI App Policy will be revised on February 19, 2026.

Scheduled date of revision

February 19, 2026

The content and date are subject to change.

Details of revision

  • Changes related to digital content
  • Clarifications to the privacy policy
  • Other formatting-related updates

The differences between before and after the revision are as follows:

Before the revision (current)After the revision
LINE MINI App PolicyLINE MINI App Policy

Background of the revision

Until now, the sale of virtual items such as digital content has generally not been allowed in LINE MINI Apps. Going forward, in Japan, virtual items will be able to be sold using the upcoming in-app purchase feature. Accordingly, the LINE MINI App Policy will be revised.

We'll continue to work to further improve our service to our customers. Thank you for your understanding.

LINE MINI App

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We've launched Tips for Developers on the LINE Developers site
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[Resolved] Notice about service outage for the Messaging API

[Resolved] Notice about service outage for the Messaging API

2026/02/04

We'd like to inform you about a service outage regarding the Messaging API. The issue has now been resolved.

We sincerely apologize for any inconvenience that this may have caused.

Date and time of outage

February 3, 2026 around 14:13 - around 15:44 (UTC+9)

Cause of the outage

Server failure

Impact

Get content

Details

During the stated date and time, some requests weren't processed properly, resulting in errors with status code 400.

We will continue to improve the quality of our services to prevent future outages. Thank you for your understanding.

Outage ReportMessaging API

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LINE MINI App Policy will be revised on February 19, 2026
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Web traffic audiences using Tracking Tag are now available in the Messaging API

Web traffic audiences using Tracking Tag are now available in the Messaging API

2026/01/21

You can now use web traffic audiences using Tracking Tag in the LINE Official Account and Messaging API, in addition to web traffic audiences using LINE Tag.

Web traffic audiences using Tracking Tag can be created in the LINE Official Account Manager. You can retrieve information about the created web traffic audiences using endpoints such as the Get audience data endpoint.

About Tracking Tag

Tracking Tag is a tag used to measure performance across various LY Corporation services. For more information, see Announcement: Launch of Tracking Tag for LINE Official Accounts (only available in Japanese) in LINE for Business.

Requirements for using Tracking Tag

In order to use Tracking Tag with your LINE Official Account, all of the following conditions must be met:

  • The LINE Official Account is for Japan
  • The LINE Official Account is connected to an authenticated organization in Business Manager (only available in Japanese)
  • The LINE Official Account is either a verified account or a premium account

About LINE Tag

LINE Tag will be discontinued in the future. If you plan to use tags for measurement, consider using Tracking Tag. We'll announce the details regarding the discontinuation once they have been determined.

Tracking Tag isn't available in LINE Ads

LINE Ads will continue to support LINE Tag only. If you are sharing LINE Tag between LINE Ads and your LINE Official Account, continue to use LINE Tag as well.

LINE Messaging API SDK Updates

For more information about the update status of each SDK release related to the above, see the LINE Messaging API SDK release notes.

Messaging APILINE Official Account

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[Resolved] Notice about service outage for the Messaging API
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For new LINE MINI App channels in Japan, the "Channel consent simplification" feature is always enabled as of January 8, 2026

For new LINE MINI App channels in Japan, the "Channel consent simplification" feature is always enabled as of January 8, 2026

2026/01/08

As announced on October 31, 2025, for new LINE MINI App channels in Japan, the use of the "Channel consent simplification" feature has been mandatory as of January 8, 2026.

Specification change date and time

January 8, 2026 12:00 (UTC+9)

LINE MINI App channels subject to the specification changes

LINE MINI App channels created after the specification changes and whose Region to provide the service under the Basic settings tab is set to "Japan"

LINE MINI App channels not subject to the specification changes

  • LINE MINI App channels created before the specification changes
  • LINE MINI App channels whose Region to provide the service under the Basic settings tab is set to "Thailand" or "Taiwan"

Specification changes

The applicable LINE MINI App channels have been changed as follows:

  • The "Channel consent simplification" feature is always enabled.
    • Accordingly, the toggle button for Channel consent simplification under the Web app settings tab has been removed, and you can no longer disable the feature.

The above changes also apply to unverified MINI Apps if the LINE MINI App channels are subject to the specification changes. However, the "Channel consent simplification" feature is available only in unverified MINI Apps for Developing and for Review.

Impact on the add friend option

In the LINE MINI App, you can use the add friend option to prompt users to add your LINE Official Account from the verification screen or the channel consent screen.

However, if only openid is specified in the "Scope" section of the Web app settings tab in your LINE MINI App channel, enabling the "Channel consent simplification" feature will prevent the verification screen and the channel consent screen from appearing. As a result, you can't prompt users to add friends using the add friend option.

To prompt users to add your LINE Official Account as a friend using the add friend option, specify scopes other than openid in the "Scope" section of the Web app settings tab in your LINE MINI App channel, and display the verification screen using one of the following methods:

  • Method 1. Use the liff.permission.query() method and the liff.permission.requestAll() method
  • Method 2. Use methods that require permissions other than the openid scope

Method 1. Use the liff.permission.query() method and the liff.permission.requestAll() method

You can use the liff.permission.query() method and the liff.permission.requestAll() method to display the verification screen.

javascript
// Display the verification screen when the user hasn't consented to the profile scope
liff.permission.query("profile").then((permissionStatus) => {
  if (permissionStatus.state === "prompt") {
    liff.permission.requestAll();
  }
});

For more information, see liff.permission.query() and liff.permission.requestAll() in the LIFF API reference.

Method 2. Use methods that require permissions other than the openid scope

You can use methods that require permissions other than the openid scope to display the verification screen. The following methods require permissions other than the openid scope:

ScopeMethod
email
  • liff.getIDToken()
  • liff.getDecodedIDToken()
profile
  • liff.getProfile()
  • liff.getFriendship()
chat_message.write
  • liff.sendMessages()

To prompt users to add your LINE Official Account as a friend right after your LINE MINI App launches, like the channel consent screen does, implement Method 1 or Method 2 so that they run right after your LINE MINI App launches.

Background of the specification changes

The specification changes aim to improve the user experience and encourage the use of LINE MINI Apps by allowing users to use them more smoothly.

We'll continue to work to further improve our service to our customers. Thank you for your understanding.

LINE MINI App

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Web traffic audiences using Tracking Tag are now available in the Messaging API
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LINE Developers Console maintenance notice

LINE Developers Console maintenance notice

2026/01/05

Maintenance is scheduled on the LINE Developers Console.

Date and time of maintenance

January 19, 2026 10:00 - 12:00 (UTC+9)

Note that the end time of the maintenance may change without notice.

Impact

For about one minute during the maintenance, the following operations on the LINE Developers Console will be unavailable.

  • Creating a LINE MINI App channel
  • Changing the settings of a LINE MINI App channel
  • Requesting a review of a LINE MINI App

Existing LINE MINI Apps will remain available to users during the maintenance.

We sincerely apologize for any inconvenience that this may cause and thank you for your understanding.

LINE Developers ConsoleLINE MINI AppMaintenance

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For new LINE MINI App channels in Japan, the "Channel consent simplification" feature is always enabled as of January 8, 2026
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We've discontinued the roadmap for LINE Login and LIFF

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