LINE connects an Official Account that you create and control. The setup wizard walks you through it and ends with pasting two values, so the work happens in LINE's own consoles and the connection completes in the wizard right after.
Setting up the Official Account
Create a LINE Official Account and complete LINE's account creation flow, using any name you like. Then open the LINE Official Account Manager, go to the Messaging API settings, and turn the Messaging API on.
Once that's done, the channel appears in the LINE Developers Console. Copy the Channel Secret from the basic settings and issue a long-lived Channel Access Token from the Messaging API tab, then paste both into the wizard, which validates them and connects the account.
A rejected pair almost always means one of the two values was copied from the wrong screen, or the token was never issued — re-copying both is the first thing to try. The Channel Secret and Channel Access Token belong in the setup wizard and nowhere else; never send either, or any other provider credential, into a product support conversation.
Two settings that live in LINE's console
Two settings are outside what Yims.ai can change, and skipping either produces a confusing result.
- If customer messages never arrive, turn on the webhook setting in the Messaging API tab — the webhook address itself is already configured during setup.
- If LINE's own canned reply arrives before the real answer, set the response mode to Bot with automatic replies and greeting messages turned off.
Owner access
Owner access is a separate step from connecting the account, and it works by sending a code, because LINE's links for opening a chat can't carry a hidden value the way other platforms do. The wizard's button opens the chat with the code already typed in — you just tap send. The code is also shown as plain text in case the button doesn't open the chat.
The reply confirms owner access and includes a dashboard link. The code is short-lived and works only once, but a new one can be issued without reconnecting the account. Customers reach your business through the Official Account's own link, which the wizard shows for sharing.
Disconnecting
Disconnecting LINE behaves differently from the other channels. It stops Yims.ai from answering, but LINE itself keeps sending messages — LINE offers no way for an application to switch that off. To make LINE genuinely stop, turn the webhook setting off yourself in the Messaging API settings. To reconnect later, turn that setting back on, then reconnect from the dashboard.