Flow builder setup needed
A flow is a WhatsApp conversation drawn as a diagram: ask a question, branch on the answer, collect what you need, and hand to a person at the point where a person is actually needed.
Needs:
the flow builder setting enabled for your account, and a WhatsApp Cloud inbox.
What you can build
A canvas, not a script
Lay the conversation out visually with the node types the builder provides — questions, conditions, messages, data capture and handover — and read it back as a diagram rather than as code.
Test before you publish
Run a flow against yourself first, then inspect a real session step by step to see which branch a customer took and where they left.
Handover with the history intact
When a flow hands a conversation to an agent, the agent gets everything the flow collected, in the same conversation.
Worth knowing
The flow builder needs its setting enabled for your account and a WhatsApp Cloud inbox: it is a WhatsApp capability, not a general chatbot for every channel.