LINE on Agentency. Answers come from your own content, with the source on the reply, and a handoff when a person should take over.

Northwind
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With your own app credentials. Paste the token the vendor gives you. If the vendor asks for a callback, paste the URL and verify token Agentency shows.
Start in the LINE Developers console, on a Messaging API channel.
Copy the long-lived channel access token and the channel secret.
Paste the long-lived channel access token and the channel secret into Agentency. Agentency registers the webhook. You do not paste a URL into the vendor.
Send a message on this channel and confirm the agent replies from your content.
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