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How to build a WhatsApp bot for your business (2026)

There are five ways to build a WhatsApp bot for a business: the WhatsApp Business app's automatic messages, a no-code flow builder like ManyChat, an AI bot on the official platform like Ariko, building it yourself on Meta's Cloud API, and unofficial apps — which break WhatsApp's Terms of Service and put the number at risk of a ban.

Updated: · The facts about WhatsApp, Meta and ManyChat are taken from their own pages and were checked on 18 October 2026. Sources at the end.

The five routes in one table

Route What it does What you need Main risk
The app's automatic messagesFixed text: greeting, away, quick repliesThe WhatsApp Business app, a few minutesDoesn't answer the question itself
No-code flow builderButtons, keywords and paths built in advanceAn account with a tool like ManyChat, time to design flowsA customer who writes something unplanned gets stuck
AI bot on the official platformReads free text and answers from the business's informationWrite the information and rules, connect the numberOnly as good as the information entered — you must test it
Building on the Cloud APIWhatever you programA developer, a Meta app, a server and a webhookA development and maintenance project, not a setup
Unofficial appsAutomation on the regular accountAn install or a scanBreaks the Terms of Service; the number can be banned

1. WhatsApp Business's automatic messages

Not quite a bot, but where every business starts: a greeting message for new customers, an away message on the schedule you choose, and quick replies pulled up by typing "/". Free, on the app's Tools tab. They send fixed text and don't read the question. Step-by-step setup.

2. A no-code flow builder (ManyChat and similar)

You build a diagram of messages, buttons and keywords: "press 1 for hours, 2 to book". Especially good for marketing — promotions, lead capture, Instagram replies. The catch: everything a customer might write needs a flow, and when something in the business changes you update the diagram.

According to ManyChat, WhatsApp is available only on its Pro accounts, with an additional charge for messages on top of the subscription. Pro starts at $29 a month billed annually, priced by active contacts, and its pricing page lists AI-powered conversations on Pro. The full comparison with ManyChat.

3. An AI bot on the official platform

No flows here. You write the business's information — services, hours, policies, what the bot must never say — and the bot reads every message in free text and answers from it. That is the kind of bot Ariko is. What decides the quality is the information you entered and your testing before a real customer writes, so with any tool like this check three things: what it answers from, what it does when it doesn't know, and how a chat is handed to a person.

Building a bot with Ariko, step by step

  1. Sign up. An email address or a Google account, no credit card and nothing to install.
  2. Answer five short questions. Your field and what you offer, what the bot should achieve in each conversation, what it must never do and what it must always do, the tone it speaks in, and three questions customers ask every day. You can also let it read the business's website — nothing from it is used until you approve it.
  3. Talk to it in the test chat. Ask what a customer would ask, and fix the information or rules until the answers are right. Everything so far is on the Free plan.
  4. Choose a paid plan. Everything you set up stays as it is.
  5. Connect WhatsApp. Sign in with the Facebook account that manages the business, and scan a QR code from the WhatsApp Business app. The number stays the same, and you keep replying from the app on your phone.
  6. Test end to end. Send a message from another phone and see the bot answer — and that the customer doesn't also get the app's away message.
Build a bot — free How it works

4. Building it yourself on Meta's Cloud API

The developer route. According to Meta's getting-started guide you need a Facebook account or a managed Meta account, developer registration, a Meta app with the WhatsApp use case and a business portfolio, a WhatsApp Business account and a phone number, an access token, and a webhook endpoint that receives the messages. From there everything is yours: the server, the reply logic or AI model, an inbox for the team, handover to a person, a calendar, security and maintenance. Meta charges separately for messages the business sends — Israel's rates in detail. It fits when there is a developer on the team and a need no ready-made tool meets.

5. Unofficial apps and bots — why not

Some tools connect to your regular WhatsApp account and send automatic messages from it, and some are modified versions of the app. According to WhatsApp's Help Center, using unofficial apps or linking your account to them violates its Terms of Service, and the account may be temporarily or permanently banned. The same Help Center says not to bulk message, auto-message or auto-dial, and that WhatsApp detects and bans accounts that send unwanted automated messages.

For a business, the number is the asset: every customer and every conversation is on it. A bot that saves a little money and risks it is a bad deal.

So which route?

  • Few enquiries, and you reply within hours — the app's automatic messages are enough.
  • Marketing, promotions and Instagram — a flow builder like ManyChat fits better.
  • The same questions over and over, and appointments, with no time to answer — an AI bot that answers from the business's information and books in the calendar.
  • A special need and a developer on the team — the Cloud API.

The seven things to check before picking a tool: How to choose a WhatsApp bot for a small business.

Frequently asked questions

Can I make a WhatsApp bot without coding?

Yes. WhatsApp Business's automatic messages, flow builders and AI bots like Ariko need no code. Only building on the Cloud API needs a developer.

How long does it take to set up a WhatsApp bot?

Automatic messages — minutes. With Ariko: five short questions and you are already talking to the bot in the test chat; connecting WhatsApp, on a paid plan, is a sign-in with the business's Facebook account and a QR scan. A flow builder — depends on how many flows. The Cloud API — a development project.

What's the difference between a flow bot and an AI bot?

A flow bot follows paths you built in advance — buttons and keywords. An AI bot reads what the customer wrote in their own words and answers from the business's information. With an AI bot, check what it does when the answer isn't written: Ariko says someone from the team can answer and offers to pass it on.

Do I need a new phone number for the bot?

Not with Ariko: you connect the business's existing number, if it is on the WhatsApp Business app, and the app on your phone keeps working.

Is it allowed to use an unofficial WhatsApp bot?

According to WhatsApp, unofficial apps violate its Terms of Service, and an account that uses them or sends unwanted automated messages can be banned. A business bot should run on the official WhatsApp Business Platform.

How much does it cost to build a WhatsApp bot?

With Ariko you build and test free, $0 — No WhatsApp connection. For it to answer customers on WhatsApp: from $99 a month before VAT, no setup fee, and Meta's charges included. Every cost, broken down.

Sources (checked 18 October 2026)

More: Choosing a WhatsApp bot · Free WhatsApp bot — what is actually free · What a WhatsApp bot costs · A virtual receptionist