# News: Articles for #Outage Report

2021/04/07

[Resolved] Notice about service outage for LINE Login

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

April 3, 2021 around 10:00 - April 6, 2021 around 12:05 JST (GMT+9)

# Cause of the outage

Server failure

# Impact

# Details

In some requests, an error with HTTP status code 400 occurred and the request was not processed properly, even though the request content was appropriate.

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

2021/03/23

[Resolved/Updated] Notice about partial LIFF API outage

Updated on March 26, 2021

Initially, the date and time of the outage was given as "March 22, 2021 around 13:55 - 16:30 JST (GMT+9)", but the problem continued to occur for some liff.getFriendship() operations even after the reported recovery time. The time of the outage in this news article has also been changed as a result of our investigation. Consequently, we have corrected the "Date and time of outage". We sincerely apologize for the inconvenience caused.

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

# Date and time of outage

March 22, 2021 around 10:15 - March 25, 2021 around 11:36 JST (GMT+9)

# Cause of the outage

Server failure

# Impact

Using the liff.getFriendship() LIFF method to get the friendship between a user and the LINE Official Account

# Details

During the stated date and time, when using liff.getFriendship(), an error occurred in the browser that opened the LIFF app due to a violation of the Cross-Origin Resource Sharing (CORS) (opens new window) policy. The problem has been fixed, and you can now use liff.getFriendship() normally.

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

2021/03/18

[Resolved] Notice about service outage for Mark-as-Read API

We'd like to inform you about a service outage regarding the Mark-as-Read API which marks messages from users as "Read". The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused.

Use of the Mark-as-Read API requires an application

Only corporate users who have submitted the required applications can use the Mark-as-Read API.

For more information, see Overview in the Options for corporate customers documentation.

# Date and time of outage

March 17, 2021 around 4:51 - around 7:35 JST (GMT+9)

# Cause of the outage

Server failure

# Impact

The request process of Mark-as-Read API

# Details

During the stated date and time, the Mark-as-Read API might not be processed properly and cause errors with status code 5xx.

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

2021/03/10

[Resolved] Notice about service outage for LINE Login

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

March 8, 2021 15:03 - 15:25 JST (GMT+9)

# Cause of the outage

Server failure

# Impact

LINE Login services that use auto login

# Details

During the stated date and time, LINE Login requests using the auto login feature could not be processed properly and LINE Login would fail in some cases.

Single Sign On (SSO) Login and Log in with email address or QR code were not affected.

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

2021/02/26

[Resolved] Notice about service outage for processing rich menus

We'd like to inform you about a service outage regarding some of the rich menu APIs provided by Messaging API. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused.

# Date and time of outage

  • February 22, 2021 16:00 - February 23, 2021 2:46 JST (GMT+9)
  • February 23, 2021 11:38 - 13:31 JST (GMT+9)
  • February 23, 2021 17:50 - 18:43 JST (GMT+9)
  • February 24, 2021 0:30 - 7:42 JST (GMT+9)
  • February 24, 2021 12:26 - 15:00 JST (GMT+9)

*Listed times are estimates

# Cause of the outage

Server failure

# Impact

Processing of these APIs for rich menus:

# Details

The processing of the listed APIs took a long time and, in some cases, the rich menu wasn't switched correctly. The process has now been resolved and the rich menus are being processed correctly.

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

2021/02/26

[Resolved] Notice about service outage for sending webhook events

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

# Date and time of outage

February 26, 2021 around 13:45 - 14:15 (GMT+9)

# Cause of the outage

Network failure

# Impact

Sending webhook events

# Details

During the stated date and time, webhook events may have been delayed or unable to be sent successfully.

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

2021/02/16

[Resolved] Notice about service outage for sending webhook events

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

# Date and time of outage

February 4, 2021 12:37 JST (GMT+9) - February 16, 2021 17:59 JST (GMT+9)

# Cause of the outage

Due to the detection of unauthorized communications in our network, we've blocked some communications as a preventive measure.

# Details

During the date and time stated above, webhook events couldn't be sent to some bot servers (Webhook URLs) using ngrok.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2021/01/14

[Resolved] Notice about service outage for sending webhook events

We'd like to inform you about a service outage regarding LIFF. When a message was sent to a chat room using the liff.sendMessages() method of the LIFF SDK, the corresponding webhook event was not sent to the bot server. The issue has now been resolved but we sincerely apologize for the inconvenience caused to our customers.

The impact of this failure is limited to sending webhook events. Messages sent using the liff.sendMessages() method were displayed correctly in the chat room.

# Date and time of outage

January 13, 2021 around 15:30 - 22:19 (GMT+9)

# Cause of the outage

Server failure

# Impact

Sending webhook events when messages were sent with the liff.sendMessages() method.

# Details

During the stated date and time, webhook events were not sent correctly. The issue has now been resolved and the webhook events are sent correctly.

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

2021/01/13

[Resolved] Notice about service outage for sending webhook events

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

# Date and time of outage

January 13, 2021 around 10:52 - 10:58 (GMT+9)

# Cause of the outage

Server failure

# Impact

Sending webhook events

# Details

During the stated date and time, webhook events may have been delayed or unable to be sent successfully.

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

2020/12/22

[Resolved] Notice about service outage for the Messaging API

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

December 22, 2020 12:16 (GMT+9) - December 22, 2020 13:31 (GMT+9)

# Cause

Server failure.

# Details

Some Messaging API requests weren't being processed properly.

# Affected service

Some of Send narrowcast message requests (when the target is specified by audience) weren't being processed properly.

If you use Get narrowcast message status to get the status of a narrowcast message, requests may have failed if the "phase" property is failed and the "errorCode" property is 1.

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

2020/11/27

[Resolved] Notice about service outage for sending webhook events

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

# Date and time of outage

November 27, 2020 12:59 - 13:17 JST (GMT+9)

# Cause of the outage

Server failure.

# Impact

Sending webhook events

# Details

During the stated date and time, webhook events couldn't be sent successfully.

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

2020/11/09

[Resolved] Notice about service outage for LINE platform

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

November 09, 2020 14:32 - 14:52 JST (GMT+9)

Regarding events that occurred due to network failures during the above hours, recovery measures were completed in stages by around 22:07 on the same day.

See Details for more information.

# Cause of the outage

Network failure.

# Impact

  • Messaging API
  • Social API
  • LINE Login
  • LIFF
  • Other general functions provided by the LINE platform

# Details

Date and time of occurrence Event
November 9, 2020 14:32 - 14:52 JST (GMT+9) API requests couldn't be processed and functions weren't working properly (e.g., error pages were displayed)
November 9, 2020 14:32 - 16:30 JST (GMT+9) Some webhook events were delayed or couldn't be sent
November 9, 2020 14:32 - 16:51 JST (GMT+9) For some Messaging API requests, the message wasn't delivered even though the request was successful
November 9, 2020 14:32 - 22:07 JST (GMT+9) Messaging API channels or Blockchain Service channels couldn't be created in the LINE Developers Console. Details can be found in the LINE Developers Console emergency maintenance announcement.

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

2020/10/19

[Resolved] Notice about service outage for LINE Login and LINE Front-end Framework

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 caused.

# Date and time of outage

October 17, 2020 11:17 - 11:22 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Impact

  • LINE Login
  • LINE Front-end Framework (LIFF)
  • Social API (v2.0, v2.1)

# Details

The API returned status code 5xx for some requests.

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

2020/10/16

[Resolved] Notice about service outage for LINE Login and LINE Front-end Framework

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 caused.

# Date and time of outage

Date: October 15, 2020 Time: Around 18:34–18:42 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Impact

  • LINE Login
  • LINE Front-end Framework
  • Social API (v2.0, v2.1)

# Details

The API returned status code 5xx for some requests.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2020/09/24

[Resolved] Notice about service outage for LINE Login

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 caused.

# Date and time of outage

August 20, 2020 - September, 21, 2020 JST (GMT+9)

# Cause

Issue with LINE for iOS and iPadOS.

# Details

When LINE Login was integrated into an iOS app with LINE SDK for iOS, some LINE Login processes didn't work properly.

Normally, in iOS apps with the LINE Login feature, these processes launch LINE.

  1. A user presses the LINE Login button on the iOS app.
  2. LINE is launched with a universal link.
  3. If step 2 fails, LINE is launched with a custom URL scheme.

Although LINE supports universal links, LINE may not be able to be launched with some universal links on certain devices or operating systems.

If you proceeded to step 3 in the above situation, LINE Login didn't work properly on some versions of LINE, and an alert saying Unable to connect. Update to the latest version of LINE or recheck the URL. was displayed on LINE.

# Affected services

If all of these conditions are met, the LINE Login process didn't work properly and an error message was displayed.

  • A user uses LINE for iOS or iPadOS.
  • A user uses LINE version 10.14.0 or 10.14.1.
  • LINE isn't launched with a universal link on a user's environment.
  • LINE Login was integrated into an iOS app with the LINE SDK for iOS Swift or LINE SDK for iOS Objective-C 5.0.0 or later.

If all of the above conditions are met, updating user's LINE version to 10.15.0 or later will resolve the issue.

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

2020/09/15

[Resolved] Notice about service outage for the Messaging API

We'd like to inform you about a service outage regarding the Messaging API. All functions provided by the Messaging API may have been affected by this outage.

The issue has now been resolved. We apologize for any inconvenience that this may have caused.

# Date and time of outage

Date: September 15, 2020 Time: 11:37-11:53 (GMT+9)

# Cause

Issue with our servers

# Details

The Messaging API call returned a status code 403 even if the request was correct.

# Affected services

All Messaging API endpoints (https://api.line.me/v2/bot/*)

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

2020/09/11

[Resolved] Notice about service outage for LINE Notify

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

# Date and time of outage

September 11, 2020 15:16 JST (GMT+9) - September 11, 2020 16:42 JST (GMT+9)

# Cause of the outage

Issues with our operations.

# Affected services

LINE Notify (opens new window)

# Details

During the date and time stated above, LINE Notify was unable to send messages. It has been resolved and messages are now being sent properly.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2020/08/17

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of outage

From: August 4, 2020 around 11:00 JST (GMT+9) Until: August 14, 2020 around 13:00 JST (GMT+9)

# Cause

Issue with our servers.

# Details

During the specified time, the statistics graph in the Statistics tab for Messaging API channels in the LINE Developers Console was not displayed as intended. It is resolved now and the graph is being displayed properly.

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

2020/07/29

[Partially resolved] Notice of failure of some analytics APIs

These problems occurred in the Messaging API, but it has been partially resolved. We apologize for any inconvenience caused to our customers.

# Date and time of outage

Issue 1: July 21, 2020 around 7:00 - 17:00 (GMT+9)

Issue 2: July 16, 2020 onwards (GMT+9)

# Situation

# (Resolved) Issue 1

When premium and verified account users called the Get number of followers API endpoint, the endpoint returned an incorrect number of followers for July 21, 2020.

This issue is now resolved and you can get the correct number for July 21, 2020.

# (Limitation) Issue 2

Some LINE Official Accounts (less than 0.5%) that used the Get number of followers API endpoint from July 16, 2020 to July 20, 2020 may have gotten incorrect numbers returned for followers, targetedReaches, and blocks.

The affected LINE Official Accounts may have had these issues:

  • If you added friends during this period, they aren't added to the total amount of friends.

  • The number of followers during this period is returned with less than the actual value.

For issue 2, the correct value can't be restored.

Note

Neither issue has any effect on the total message delivery count.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2020/07/15

[Resolved] Notice about service outage for sending webhook events

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

# Date and time of outage

June 29, 2020 13:20 JST (GMT+9) - July 14, 2020 17:42 JST (GMT+9)

# Cause of the outage

Due to the detection of unauthorized communications in our network, we've blocked some communications as a preventive measure.

# Details

During the date and time stated above, webhook events couldn't be sent to some bot servers (Webhook URLs) using ngrok.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2020/07/13

[Resolved] Notice about service outage for LINE Front-end Framework

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

# Date and time

Date: July 13, 2020 Time: 11:44–17:26 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

During the date and time stated above, there was an issue with our server that caused an error message to display when creating a new LIFF app. Although an error message was displayed, new LIFF apps were being created. We have already completed the recovery process.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2020/06/24

[Resolved] Notice about service outage for LINE Login

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: 2020/6/24 Time: 15:30-16:14 JST (GMT+9)

# Cause

Issues with our servers.

# Details

The LINE Login process did not work properly in some cases.

Auto login and LINE login with Single Sign On (SSO) were not affected.

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

2020/05/01

[Resolved] Notice about service outage for the Messaging API

We'd like to inform you about a service outage regarding the Messaging API. All functions provided by the Messaging API may have been affected by this outage.

The issue has now been resolved. The Messaging API has been operating normally since the following date and time. We apologize for the delayed announcement and any inconvenience that this may have caused.

# Date and time of outage

Date: April 24, 2020 Time: 14:41-17:46 (GMT+9)

# Cause

Network failure

# Affected services

All functions provided by the Messaging API may have been affected by this outage.

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

2020/04/22

[Updated] Notice about service outage in the aggregation of some APIs for 'Audience' and 'Insight'

Updated on May 1, 2020

The API we reported on April 22, 2020 is now available with a limit.

For more information, see the following pages:

We'd like to inform you about the following service outage regarding our Messaging API. We apologize for any inconvenience this may have caused.

# Date and time of outage

Date: 2020/04/13 Time: Since about 15:30 (GMT+9) (Ongoing)

# Details

After the time above, you may no longer be able to count impressions correctly in an audience for impression-based retargeting.

Therefore, we temporarily restrict the use of some features. Specifically, we will take the following actions.

We are currently investigating and responding to the issue.

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

2020/01/22

[Resolved] Notice about Flex Message Simulator outage

We'd like to inform you about a service outage regarding Flex Message Simulator. The issue has now been resolved but we sincerely apologize for any inconvenience that this may have caused.

# Date and time of outage

January 21, 2020 13:03 JST (GMT+9) - January 22, 2020 11:59 JST (GMT+9)

# Cause

Issues with our servers.

# Affected services

Flex Message Simulator (https://developers.line.biz/flex-simulator/)

# Details

During the specified time, Flex Message Simulator was inaccessible.

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

2019/12/20

[Resolved] Notice about service outage for LINE Login

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: 2019/12/19 Time: 19:10-19:32 JST (GMT+9)

# Cause

Issue with our servers.

# Details

LINE Login and LIFF operations were unstable and did not work properly.

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

2019/10/04

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

Date: October 4, 2019

Time:

9:00-9:02 JST (GMT+9)

10:04 JST (GMT+9)

11:00-11:08 JST (GMT+9)

12:02-12:08 JST (GMT+9)

# Cause

Issue with our servers.

# Affected services

All Messaging API endpoints (https://api.line.me/v2/bot/*).

# Details

The API returned status code 500 for some requests.

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

2019/09/12

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

Date: September 11, 2019 Time: 17:00–18:30 JST (GMT+9)

Date: September 12, 2019 Time: 13:00–13:30 JST (GMT+9)

# Cause

Server outage due to heavy load.

# Affected services

All Messaging API endpoints (https://api.line.me/v2/bot/*).

# Details

The API returned status code 500 for some requests. Also, the "Send reply message" endpoint (https://api.line.me/v2/bot/message/reply) returned error codes in the 400 range, even for correct requests.

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

2019/09/11

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of outage

Date: September 11th, 2019 Time: 13:46–15:58 JST (GMT+9)

# Cause

Issue with our servers.

# Details

During the specified time, the Statistics tab for Messaging API channels in the LINE Developers Console was not working as intended.

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

2019/08/28

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of outage

Date: August 28, 2019 Time: 18:15 ~ 18:40 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

During the date and time stated above, some users could not access the LINE Developers site and the LINE Developers Console.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2019/07/26

[Resolved] Member users were able to retrieve Channel secret because of a bug

We discovered and fixed a bug in the LINE Developers Console that allowed Member users to obtain a channel secret. We sincerely apologize for any inconvenience caused.

On July 24, 2019, we emailed this information to all administrators of channels with Member users.

# Issue time

Issue inception: September 21, 2017

Issue solved: July 17, 2019

# Details

There was a bug that allowed Member users to obtain the channel secret, which should have appeared only to Admin users.

The Channel settings tab did not display the channel secret when a Member user viewed the page. However, the API that the LINE Developers Console called in the background did return the channel secret. Therefore, a malicious Member user could have obtained and abused the channel secret.

What is a channel secret?

The channel secret is a secret key provided by LINE to call our APIs and validate identities. It should be kept secret from unauthorized parties.

Member user permissions

Originally, Member users can only view basic information and statistics for a channel. They don't have access to the channel secret.

# What you should do

If you're concerned that unauthorized Member users have obtained your channel secret, you should issue a new one. Doing so will invalidate the previous channel secret.

After you issue a new channel secret, you'll have to update it in the app which uses the channel secret. Carefully consider the impact of issuing a new channel secret on your app.

# How to issue a new channel secret

You can issue a new channel secret on the Channel settings tab in the LINE Developers Console.

Forced reissue of channel secret

LINE will not forcibly reissue new channel secrets. The Admin user for each channel should decide whether it's necessary to reissue a new channel secret.

# Acknowledgement

This bug was reported through the LINE Security Bug Bounty Program (opens new window).

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

2019/07/18

[Resolved] Notice about service outage for LINE Login

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 Time: 9:38–10:40 JST (GMT+9)

# Cause

Issue with our servers.

# Details

LINE Login returned http error codes with the pattern 5xx (500, 501, etc.) for some requests. As a result, LINE Login was unavailable in the following applications:

  • Web application
  • Desktop app

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

2019/06/18

[Resolved] Notice of problems with migration of LINE Official Accounts

We encountered problems during the planned migration of accounts from the deprecated Developer Trial plan to the new free plan, which started on June 11, 2019. The problems have now been resolved. We sincerely apologize for the inconvenience this caused.

# Date and time of outage

From: June 11, 2019 Until: June 18, 2019 14:33 JST (GMT+9)

# Cause

In Japan and Thailand, accounts that were migrated from the old Developer Trial plan to the new free plan incorrectly retained their old limit on number of friends (50).

# Details

When a user tried to befriend an account that had reached the limit of 50 friends, this error was displayed:

Sorry, the account you are trying to add cannot accept any more friends.

We have now removed the limit on the number of friends.

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

2019/06/17

[Resolved] Notice about service outage for LINE Login

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 17, 2019 Time: 11:41–13:01 JST (GMT+9)

# Cause

Issue with our servers.

# Details

LINE Login returned error code "400 Bad Request" when some users attempted to log in.

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

2019/06/14

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

Date: June 14, 2019 Time: 10:35–12:19 JST (GMT+9)

# Cause

Issue with our servers.

# Affected services

All Messaging API endpoints (https://api.line.me/v2/bot/*).

# Details

The API returned status code 500 for some requests.

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

2019/06/05

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

Date: June 5, 2019 Time: 14:41–15:05 JST (GMT+9)

(Most errors were solved by 14:55.)

# Cause

Issue with our servers.

# Affected services

All Messaging API endpoints (https://api.line.me/v2/bot/*) and webhook.

# Details

The API returned status code 403 or 500 error for some requests. Also, webhook events were not successfully sent.

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

2019/04/04

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of outage

Date: April 4, 2019 Time: 14:00 ~ 15:00 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

During the date and time stated above, users could not access the LINE Developers site and the LINE Developers Console.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2019/03/01

[Resolved] Notice about service outage for LINE Login and the Social API

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 and time of outage

Date: February 26, 2019

Time: 6:46–7:16 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

HTTP status code 500 was sometimes returned when requests were sent to the LINE Login and Social APIs.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2019/02/26

[Resolved] Notice about service outage for Messaging API

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

# Date and time of outage

  • Date: February 26, 2019
  • Time: Approximately 11:15-13:00 (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

HTTP status code 500 was sometimes returned when the following API endpoints were accessed:

  • Get content API: https://api.line.me/v2/bot/message/{messageId}/content
  • Rich menu API: https://api.line.me/v2/bot/richmenu/*

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2019/02/25

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

  • Date: February 20, 2019
  • Time: Approximately 18:45-19:02 and 19:10-19:26 (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

The Messaging API experienced errors with error code 403 or 500 during the outage.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2019/01/15

[Resolved] Notice about service outage for the Messaging API

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

# Date and time of outage

  • Date: January 12, 2019
  • Time: 16:59-18:30 (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

The Messaging API experienced errors with status code 5xx for approximately one minute around 17:00 on January 12, 2019. Also, webhook events were not successfully sent until 18:30 on the same day.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/06/27

[Resolved] Notice about service outage for the Messaging API

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

# Date of recovery

Date: June 27, 2018 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

When the Messaging API was called to unlink a rich menu from a user that was not in a chat with the bot, the rich menu was not unlinked from the user. This issue occured only to users with LINE 8.7.0 or later for iOS and rich menus configured at admin-official.line.me.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/06/26

[Resolved] Notice about service outage for LINE Login and the Social API

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 and time of outage

Date: June 26, 2018

Time: 16:25–17:00 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

An error was returned when the following API features were accessed:

  • Get user profiles
  • Get friendship status
  • LINE Login

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/06/21

[Resolved] Notice about service outage for LINE Front-end Framework

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

# Date and time of recovery

Date: June 21, 2018 around 17:30 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

When a LIFF app was added to a channel, the permission to retrieve the user's email address was revoked if it had been granted to the channel. Please check if the email permission has been revoked or not from the LINE Developers Console. Request the permission again if it has been revoked.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/04/12

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of outage

Date: April 11, 2018 Time: 12:00 ~ 22:00 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

During the date and time stated above, certain users could not access the LINE Developers Console.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/03/29

[Resolved] Notice about service outage for Messaging API

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

# Date and time of outage

Date: March 27, 2018 Time: 21:40 ~ 23:50 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

HTTP status code 500 was sometimes returned when the following API endpoints were accessed:

  • Get content API: https://api.line.me/v2/bot/message/{messageId}/content
  • Rich menu API: https://api.line.me/v2/bot/richmenu/*

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2018/03/26

[Resolved] Notice about service outage for LINE Developers site

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

# Date and time of recovery

March 23, 2018 around 19:20 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

The icon image of a LINE@ account was not updated after setting or changing the icon image of the Messaging API (bot) channel that corresponds to the LINE@ account at the LINE Developers site.

This outage has now been resolved and the icon image of a LINE@ account can be configured by setting an icon image again on the "Channel settings" page.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.

2017/12/15

[Resolved] Notice about service outage for LINE Login and the Messaging API

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

# Date and time of outage

Date: December 14, 2017 Time: 16:40–17:08 JST (GMT+9)

# Cause of the outage

Issue with our servers.

# Details

  1. Requests and responses (Messaging API and LINE Login) that contained user IDs either failed or returned incorrect user IDs.
  2. Webhooks for the Messaging API did not return correct user IDs.
  3. Push message requests with specified user IDs failed.

We will continue to improve the quality of the services we provide to our developers and we greatly appreciate your understanding.