Sources make answers accountable
When an answer links to the documentation it used, a customer can read the full policy or complete the exact setup task. The link also makes maintenance practical: if a reply is incomplete, your team can fix the source article instead of guessing what the system saw.
Define what the bot may answer
Begin with public, stable facts: setup instructions, documented limits, billing policy, known error messages, and product workflows. Do not let an automated layer decide refunds, access exceptions, security incidents, or account-specific facts without a dependable data source and an escalation process.
The safest rule is simple: when no published source supports the answer, say that the help center does not have an answer yet and show a way to contact a person.
Write source articles around tasks
“Billing” is a weak source title. “How to update a card,” “What happens when you cancel,” and “Why an invoice is unavailable” are easier for people and retrieval systems to match. Put the direct answer near the top, then give the steps, expected result, and related tasks.
Use unanswered questions as a queue
Review questions that returned no source or a weak source each week. Group similar wording into one intent, improve the article, and test the question again. That creates a documentation loop instead of an opaque chatbot.