No-CodeBeginner

How to Build an FAQ Chatbot in Voiceflow From Scratch

Use Voiceflow's visual canvas to build a flow with an intent trigger, a knowledge base answer, and a fallback, then test it in the live tester.

10 minBeginner

Voiceflow is a visual builder where you drag blocks onto a canvas and connect them with arrows to define a conversation. For an FAQ bot you combine its Knowledge Base feature (which answers from documents you upload) with a few designed paths for greetings and handoff. This guide builds that from an empty project.

What you need

  • A Voiceflow account (the free tier is enough to build and test)
  • A handful of FAQ answers as a PDF, URL, or pasted text
  • About 15 minutes to wire the flow and test it

Step 1: Create an Agent project

On the dashboard click Create Agent, pick the Chat type, and open the blank canvas. You will see a Start block already placed. Everything flows out of it.

Step 2: Upload sources to the Knowledge Base

Open the Knowledge Base tab in the left panel and add your FAQ. Voiceflow chunks and indexes the content so a single block can later search it. Upload a PDF or paste a URL, then wait for the status to switch to Ready.

Voiceflow — Knowledge Base
Knowledge Base
----------------------------------------
Source Type Status
faq-shipping.pdf PDF Ready
https://acme.com/returns URL Ready
pasted-warranty-text Text Ready
Chunks indexed: 142
[ + Add source ]
Indexed sources the answer block will search.

Step 3: Add a Knowledge Base response block

On the canvas, drag in a Response block and set its type to Knowledge Base. Connect the Start block to it. Now any user message routes into a search over your indexed FAQ, and the answer is generated from the matching chunks.

Voiceflow — Canvas
[ Start ]
|
v
[ Response: Knowledge Base ]
| not found
v
[ Response: 'Let me connect you to support' ]
|
v
[ End ]
Start, KB answer, and a fallback wired together.
Always design the not-found path
Wire the Knowledge Base block's no-match exit to a clear handoff message. A bot that says nothing when it cannot answer feels broken; a bot that offers an email or live chat feels helpful.

Step 4: Run the tester

Click Run in the top-right to open the live tester. Type real questions. The tester highlights which block is active on the canvas as it runs, so you can see exactly where a confusing reply came from.

Voiceflow — Test
You
How long does shipping take?
Agent
Standard shipping takes 3 to 5 business days within the US. Express options are available at checkout for 1 to 2 days.
Live tester with the conversation transcript.

Result

You have a working FAQ bot that answers from your own documents and degrades gracefully to a handoff. From here you can add buttons, capture an email, or branch into specific topics, all on the same canvas.

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Tags
#voiceflow#faq#flow#knowledge-base#no-code