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How I stopped my n8n WhatsApp bot from inventing prices (the "LLM picks an ID" pattern)

This story is from 2026-10-25. It is preserved in the archive; the latest stories are on the live feed.

Most "AI WhatsApp bot" tutorials hand the customer's message to an LLM and send back whatever it writes. That works great in a demo and terribly for a real small business: the model will happily quote a price, a warranty, or an opening hour that does not exist. I built a WhatsApp FAQ bot for small…

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  1. 2026-10-25 13:06 · DEV Community — AI
    How I stopped my n8n WhatsApp bot from inventing prices (the "LLM picks an ID" pattern)

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