WhatsApp AI Chatbot for Businesses

It’s probably happened to you: someone messages you on WhatsApp at eleven at night asking how much something costs. You see it in the morning, reply, and never hear back. They’ve gone somewhere else that replied sooner.

That’s what a well-set-up WhatsApp AI chatbot solves. Not a “press 1 for prices, 2 for hours” menu—everyone hates those—but an assistant that understands what people ask, checks your real data, and answers as you would. And if it doesn’t know, it hands over to you.

What it actually does

• Instantly answers the usual questions: prices, hours, availability, directions, lead times, payment methods.
• Checks your real data before replying: your catalog, your stock, your calendar, or a spreadsheet you keep updated. If a price changes, the bot knows—no manual updates needed.
• Books appointments or takes orders if you want, following the rules you set.
• Hands over to a person when it doesn’t know, when it’s something sensitive (a complaint, a return), or whenever you decide. The whole conversation is saved in a dashboard so you can pick it up without asking the same questions again.
• Uses your tone of voice: if your business is informal and says “¡buenas!”, the bot won’t sound like a bank.

A real example: the phone repair shop

In the real-world example with numbers, a phone repair shop in Madrid got most of its questions through WhatsApp: “How much is an iPhone 13 screen?”, “Do you have this refurbished model?”, “What time do you close?”

The bot I set up isn’t a menu tree: before answering, it checks the Shopify catalog and the shop’s POS. So when it says the screen costs a certain amount, that’s today’s price. If it doesn’t know the answer, it leaves the conversation in a dashboard for the team to pick up.

How I set it up

1. You tell me the 20 questions you get asked most and where each answer comes from (a website, an Excel file, your management software).
2. I connect your number to the official WhatsApp Business API (the one from Meta). Your number stays yours, and you can keep replying manually from your phone or a dashboard.
3. I give the bot read-only access to your data. It can check stock, but can’t change anything.
4. We test it together with real questions before opening it to customers. And for the first few weeks, I review conversations to fine-tune.
5. You get the documentation and the keys: the Meta account and the AI provider account are in your name.

How much it costs

• Setup cost depends on what needs connecting. I give you a fixed price after a call, before starting, and with the estimator you can see how much it costs you today to do it by hand.
• Usage cost: the AI costs cents per conversation (for a typical small business, €5–30 a month). WhatsApp charges for templates you initiate (reminders, promotions); replying to incoming messages within 24 hours is not charged per message.

To see if it’s worth it: in a shop that gets 15–20 WhatsApp queries a day, that’s easily 10 to 25 hours a month someone no longer spends answering the same questions. With the calculator you can work out your own case.

What I don’t recommend

• “Free WhatsApp bots” that connect by scanning a QR code with unofficial libraries. They work, yes, but they break WhatsApp’s terms and can get your number blocked. For a business, it’s not worth the risk.
• Sending promotions to people who haven’t asked for them. Besides being illegal without consent (in Spain and the EU), it burns your number: if people report you, Meta lowers your quality rating and you can end up unable to send messages.
• Letting the bot close big sales or handle complaints on its own. A person needs to step in for those. The bot prepares, you decide.

If you’d rather set it up yourself, the blog has a step-by-step guide to automating WhatsApp, from automatic replies in the Business app to a full AI bot.

Frequently asked questions

Do I need WhatsApp Business or is the regular app enough?

For a real bot, you use the official WhatsApp Business API. If you currently use the standard or Business app on your phone, your number is migrated. I’ll explain what changes before anything happens so there are no surprises.

Can I still reply myself from my phone?

Yes. You can jump into any conversation, and the bot steps aside when you do. Many businesses leave the bot on outside business hours, then reply themselves in the morning.

What if the bot says something it shouldn’t?

That’s why it only replies with information from your data and hands over the rest. Plus, I review and adjust conversations during the first few weeks. And you can always pause it with a button.

How long does it take to be up and running?

A frequently asked questions bot takes one to two weeks. If it needs to connect to your POS or online store, two to three weeks. The slowest part is almost always Meta’s verification, not the bot itself.

Are my conversations used to train the AI?

No. Messages go through the model provider so it can reply, but with business options they are not used for training.