LINE
Connect a LINE Official Account so your apps can message customers on LINE and react when they message back.
LINE is a two-way channel: your apps can send messages to customers on LINE, and they can react when a customer sends a message in. You connect a LINE Official Account in your dashboard, then describe what you want to your coding agent and it builds it.
flowchart LR
Cust["💬 Customer on LINE"] -- "messages in" --> SD["☁️ Stardeck"]
SD -- "forwards to your app" --> App["📱 Your app"]
App -- "send message" --> SD
SD -- "delivers on LINE" --> CustYour app never holds your LINE credentials—Stardeck brokers every message. See Connected Services for the shared model.
Testing vs. your own account
You can start sending right away on a shared dev account, then connect your own when you go live—similar to how email works.
| Shared dev account | Your own LINE Official Account | |
|---|---|---|
| Setup | None—available immediately | Connect in Settings → Integrations |
| Sends from | A shared Stardeck dev account | Your branded Official Account |
| Limit | 50 messages/day, sandbox only | Your LINE plan's limits |
| Use for | Trying things out while you build | Production |
The shared account works only in sandbox. Previews and production refuse sends on it, so connect your own Official Account before going to production. See Connect LINE.
What you can build
Describe what you want to your coding agent, or in the app's Build tab. See Build features. Some examples:
Message customers
When an order ships, send the customer a LINE message with the tracking linkReact to incoming messages
When someone messages our LINE account "hours", reply with our opening timesOnboard new followers
When a customer adds our LINE account, send them a welcome message and a couponSee Receiving messages for how inbound messages reach your app.
Sign customers in with LINE
If customers sign in to your app with LINE, connect your own LINE MINI App so your Official Account can message them. See Sign in with LINE.
Want an AI agent to answer LINE messages automatically, instead of writing the replies in your app? Pair your LINE account to a Starcat Customer Agent that handles conversations for you and lets your team review or take over. (In early access—ask support if you don't see Conversations in your dashboard.)