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Guide
How to Set Up LINE AI Customer Service
A good LINE AI agent is mostly a good knowledge base and clear rules. The model is the easy part.
Why LINE
LINE is where many Taiwan customers already are. LY Corporation says LINE had 22 million monthly active users in Taiwan as of 2024.
Keyword replies can handle "what are your hours?" They struggle with "my order came three days ago, can I still return it?" That takes understanding the question.
Your options
Built-in tools. LINE Official Account has its own auto-reply features. Start here if your questions are simple. Check LINE's current plans for what yours includes.
A custom build. LINE's Messaging API lets your own server receive messages and reply. This fits when you need your own knowledge base, rules and handoff.
Four stages
Gather. Collect product data, prices, return policy, shipping and support procedures. This decides how good the answers will be.
Build. Write the rules and knowledge base. Set what the AI must not say. Decide when it hands off.
Test. Try normal questions, edge cases, attacks and compliance traps. Fix problems and test again.
Launch and maintain. Review real chats. Update the knowledge base when products change.
How to budget
There are two costs: the build and the upkeep. The size of your catalog, your rules and your message volume set both.
Do not skip upkeep. An AI agent with old prices gives old answers. We quote after we see your data.
Security
The bigger risk is not silence. It is a wrong answer. OWASP ranks prompt injection first in its Top 10 for LLM applications. That is when crafted input makes a model behave in ways you did not intend.
Basic protection means limiting what the AI can do, separating outside content from instructions and keeping a person in the loop for risky actions. Then test it.
Compliance
If you sell food in Taiwan, Article 28 of the Act Governing Food Safety and Sanitation bans false, exaggerated or misleading promotion, and any claim of medical efficacy. Cosmetics have similar rules.
AI can repeat health claims it has read online, so set clear limits. For health questions, have it suggest asking a doctor. Have your lawyer review the rules. This article is not legal advice.
Is this right for your brand?
Tell us about your message volume and products. We will tell you what fits.
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