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Kylon connects to LINE through a bring-your-own LINE Official Account. You provide the account’s Channel Secret and Channel Access Token. Kylon uses them to identify the Official Account, configure its webhook URL, verify webhook delivery, and send messages through the LINE Messaging API.

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Before you start

You need:
  • Admin access to a LINE Official Account.
  • Access to its matching Messaging API channel in the LINE Developers Console.
  • A Channel Secret from the account’s Basic settings.
  • A Channel Access Token from the Messaging API tab.
If the account does not have a Messaging API channel yet, enable the Messaging API in LINE Official Account Manager. LINE creates the corresponding channel in the LINE Developers Console.

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Find the credentials

1

Open the LINE Official Account

Sign in to LINE Official Account Manager and open the account you want to connect.LINE Official Account Manager account list
2

Copy the Channel Secret

Open Settings > Messaging API. Copy the Channel Secret, or open the matching channel in the LINE Developers Console and copy it from Basic settings.
3

Issue a Channel Access Token

Open the matching channel in the LINE Developers Console, choose Messaging API, and issue or copy a Channel Access Token.The token is not shown in LINE Official Account Manager. If necessary, match the numeric Channel ID in both products to make sure you opened the same account.
The Channel Secret, Channel ID, and Channel Access Token are different values. A Channel Secret is commonly a 32-character value. A Channel ID is numeric. A Channel Access Token is an opaque token and is usually much longer. Do not paste the Channel ID into either Kylon field.

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Create the Kylon connection

You can start setup from either place:
  • Click the LINE setup action an agent sent in chat.
  • Open the agent’s Connections page and choose LINE Official Account.
Enter both required credentials: When you submit the form, Kylon automatically:
  1. Checks the Channel Access Token and reads the Official Account name.
  2. Creates one pending connection.
  3. Sets the Kylon webhook URL in LINE.
  4. Tests the webhook endpoint.
  5. Checks whether LINE reports webhook delivery as active.
Kylon only shows LINE connection created after all checks pass. A successful setup does not require you to copy a webhook URL.
If you close an unfinished chat setup, click the original agent action again to continue the same connection. Kylon does not create a duplicate. You can also repair a pending connection from its Webhook menu.

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Turn on Webhooks in LINE

LINE’s public Messaging API can set and test a webhook URL, but it cannot turn on the account’s Webhooks switch. If Kylon asks you to enable webhooks, use either path below.

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LINE Official Account Manager

  1. Open the Official Account.
  2. Go to Settings > Response settings.
  3. Turn on Webhooks.
  4. Return to Kylon and click Check again.

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LINE Developers Console

  1. Open the matching Messaging API channel.
  2. Open the Messaging API tab.
  3. Turn on Use webhook.
  4. Return to Kylon and click Check again.
Check again reads and tests the existing webhook. It does not create another connection or replace the URL.

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Manual URL setup

Kylon displays a copyable webhook URL only when LINE rejects or cannot complete the automatic URL update. If Kylon shows Set the webhook URL in LINE:
1

Copy the URL from Kylon

Copy the URL shown in the setup dialog. The URL contains a private capability token; do not share it.
2

Paste it in LINE

In the LINE Developers Console, open the channel’s Messaging API tab. Edit Webhook URL, paste the exact Kylon URL, and save it.LINE Developers Console webhook settings with Webhook URL, Verify, and Use webhook controls
3

Enable delivery and check again

Turn on Use webhook, return to Kylon, and click Check again. You do not need to create another connection.
If Kylon should handle incoming messages:
  • Turn off LINE’s automatic replies so they do not compete with the agent.
  • Keep Webhooks enabled.
  • To receive group or room messages, enable Allow bot to join group chats in the LINE Developers Console before inviting the Official Account.

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Message coverage

After the connection is active, Kylon can receive new inbound messages from:
  • One-to-one chats with the Official Account.
  • Groups that the Official Account has joined.
  • Multi-person chats (rooms) that the Official Account has joined.
A missing local Event does not prove that no LINE message exists. If Kylon reports that Event collection is unavailable, repair the webhook before relying on the local history. For LINE’s event and conversation behavior, see Receive messages and Group and multi-person chats.

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Verify or repair an existing connection

Open the connection’s menu and choose Webhook. The dialog shows the current status and the latest webhook activity.
  • Click the refresh icon to verify the existing URL, test the endpoint, and recheck the Webhooks switch. Verification does not change LINE’s URL.
  • Choose Reconfigure webhook to replace invalid credentials or let Kylon restore a mismatched URL.
  • If the dialog reports a problem, follow its direct recommendation or open this setup guide.

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Troubleshooting