Guide

WhatsApp chatbots: how they work and how to build one

What a WhatsApp chatbot actually does, the rules Meta enforces, and how to get one live on your own WhatsApp number without writing code.

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What a WhatsApp chatbot is

A WhatsApp chatbot is software connected to a business WhatsApp number that reads incoming messages and replies automatically. A basic one just matches keywords. A good one is grounded on your actual business data - prices, hours, services - so it answers correctly instead of guessing, and hands the conversation to a human when it isn't sure.

The 24-hour messaging window

WhatsApp's Cloud API enforces a 24-hour window measured from a customer's last message. Inside that window, a business can send free-form replies - including AI-generated ones - at no extra messaging cost. Once 24 hours pass without a new message from the customer, only pre-approved message templates can be sent until they reply again. This is a WhatsApp platform rule, not a limitation of any particular tool, and it applies to every business on the Cloud API.

The Meta Cloud API, and why direct access matters

Many WhatsApp chatbot tools route your messages through their own routing infrastructure and can add a per-message markup on top of what Meta already charges. Inboxxit connects directly to the Meta Cloud API - the same official API Meta operates - so there is no added markup: you pay Meta's standard conversation rates, nothing more.

What a good WhatsApp chatbot should do

At minimum: answer common questions correctly from your real business data, and know when to say "let me get a person for you" instead of making something up. Beyond that, look for buying-intent scoring (0-100) so you know which conversations to prioritize, and a CRM behind the chat so every contact becomes a tracked lead instead of a message that scrolls away. In-chat AI booking - checking your real calendar and confirming an appointment inside the conversation - is a Growth-plan-and-up feature, not something every WhatsApp chatbot includes at the entry level.

How to build one with Inboxxit

No code is required. During onboarding, Inboxxit walks you through connecting your WhatsApp Business number and getting it verified and approved by Meta - the same approval every business on the Cloud API needs, regardless of which platform they use. Once approved, the chatbot is grounded automatically on the prices, hours and services you set up, starts scoring buying intent on every conversation, and drops each contact into a pipeline you can work from the inbox.

FAQ

Questions, answered.

What is the WhatsApp 24-hour window?

It's the window, measured from a customer's last message, during which a business can send free-form replies. Outside that window, only pre-approved message templates can be sent until the customer writes in again. This is a WhatsApp platform rule that applies to every business on the Cloud API.

Do I need Meta's approval to use a WhatsApp chatbot?

Yes. WhatsApp requires a verified business number and Meta's approval before you can message customers at scale. Inboxxit walks you through that process during onboarding.

Does Inboxxit mark up WhatsApp message costs?

No. Inboxxit connects directly to the Meta Cloud API, so you pay Meta's standard conversation rates with no added per-message markup.

Do I need a developer to set it up?

No. Setup is guided and no-code - you connect your WhatsApp number, answer a few questions about your business, and the chatbot is grounded on that information automatically.