WhatsApp AI Agents for UK Businesses: A Chatbot That Answers Customers and Books Work in Your Own Systems

A WhatsApp chatbot is software that answers messages sent to a business WhatsApp number. A basic one follows a menu of fixed replies. An AI agent reads free text, answers from information the business has approved, and can do a job in another system, such as booking a visit or finding an order. Business chatbots run on Meta’s WhatsApp Business Platform, which sets rules on opt-in, templates and a 24-hour reply window.

Yes, in two forms. Meta Business Agent is Meta’s own AI agent, set up from the Tools tab of the WhatsApp Business app. Meta’s help page says it is available in limited countries to select businesses, so it may not appear on your account yet. The other form is a custom AI agent built on the WhatsApp Business Platform, which connects to your own diary, order or job system.

Yes, for businesses that follow Meta’s rules. The WhatsApp Business Messaging Policy, last updated 23 September 2026, says you may use automation when responding inside the 24-hour window, as long as customers have a prompt, clear and direct route to a person. Meta’s Platform terms bar AI providers from offering a general-purpose assistant as the main service. Meta’s developer pages also say that using unauthorised third-party tools is prohibited.

A chatbot answers. An agent answers and acts. A menu chatbot sends the reply that matches the button a customer tapped. An AI agent understands a typed question, checks your diary, order system or CRM through a live connection, makes the booking or finds the order, and hands the chat to a person when your rules say so. On WhatsApp both run on the same Platform under the same Meta rules.

A business can use an AI model, including the models behind ChatGPT, to answer its own customers on WhatsApp. Meta’s pricing page describes service messages as ones that can be powered by a third-party AI solution or by people. Section 4.7 of Meta’s Platform terms bars something different, which is an AI provider offering a general-purpose assistant on WhatsApp as the main service. Our reading is that the agent has to be about your business, such as your orders and your bookings.

It depends on what the chat has to do. For a few chats a day, the free WhatsApp Business app with a greeting, an away message and quick replies is enough. For common questions answered from your website and catalogue, Meta Business Agent may do, where Meta has made it available. For standard flows, a chatbot tool subscription works. When the chat has to read and write to your own diary, order or job system, a custom agent is the fit.

When a customer messages or calls your business number, Meta starts a 24-hour timer called a customer service window. Inside it you can reply with free-form messages, and each new customer message resets the timer to 24 hours. Once it closes, the only messages you can send are templates Meta has approved. The rule applies to the WhatsApp Business Platform. Meta’s developer pages say messages sent from the WhatsApp Business app are not subject to the window.

A template is a message you write in advance and submit to Meta, with gaps for details such as a name or a time. Meta files each one as marketing, utility or authentication, and says templates generally require approval before you can send them. Templates are the only messages a business can send outside the 24-hour window, so appointment reminders, delivery updates and offers each need one.

Yes. Meta’s policy says you may only contact people on WhatsApp if they gave you their number and you have received their opt-in. The opt-in must make clear that the person is agreeing to messages from your business, by name. Meta accepts a website form, SMS, a phone menu or a signed paper form. It also says the method must comply with the law that applies to you, which in the UK means checking PECR for marketing messages.

Through the WhatsApp Business Platform, with approved templates, to people who have opted in. Meta caps how many different people you can message outside the service window in a moving 24 hours. A new business portfolio starts at 250. Verifying your business is one route to 2,000, and Meta then raises the limit automatically to 10,000, 100,000 and unlimited when its quality criteria are met. If the messages are marketing, PECR’s rules on marketing to individuals apply as well.

Yes. Reminders, booking confirmations and delivery updates are what Meta calls utility templates, which are messages triggered by something the customer did, with no promotional content. Your booking or order system triggers the send, the customer’s details fill the gaps, and replies come back to the agent. Meta’s guidelines say a template that mixes an update with a promotion is filed as marketing, so keep offers in separate templates.

Meta’s policy requires it. A business may use automation inside the 24-hour window but must also offer prompt, clear and direct escalation paths. The policy lists a transfer to a human agent in the chat, a phone number, an email address, web support, a visit to a shop or branch, or a support form. We build the handover as a transfer in the same chat, with the conversation so far passed to a named person on your team.

Yes. Meta’s enforcement page says an account that breaks its policies first gets a warning. Repeated breaches bring a 1 or 3 day block on sending templates, then 5, 7 or 30 day blocks on sending any message, then an account lock that only an appeal can lift, and in the end permanent removal from the Platform. Meta also says it may limit a business that receives excessive negative feedback from users.

Meta gives two routes onto the Platform. A business with developers can sign up directly, call the Cloud API and set up webhooks, which are the messages Meta sends your server when a customer writes. Or it can work through one of Meta’s Business Solution Providers. Either way you need a Meta business portfolio, a WhatsApp account, a registered phone number and a display name. The AI agent, its approved answers and its connections to your systems are built on top of that.

For Meta’s own agent, Meta’s steps are to open the Tools tab of the WhatsApp Business app, choose Meta Business Agent and follow the prompts, if your account has it. For a custom agent, the number is registered on the WhatsApp Business Platform, the agent is connected to Meta’s Cloud API, and incoming messages start reaching it. We switch a custom agent on for replies first and add outbound templates afterwards.

Usually, yes. Meta’s developer pages say a number already in use with WhatsApp cannot be registered on the Platform unless it is deleted from the app first. There is a second route for WhatsApp Business app users, which is a signup flow run by a Meta Solution Partner or Tech Provider that connects the same number to the Cloud API while you keep the app. Meta says chats stay in sync between the two, and that broadcast lists and disappearing messages are switched off.

Most systems that offer an API, the documented door other software uses to read and write data. FactoryJet builds WhatsApp, HubSpot and Xero integrations, and has worked on Odoo, NetSuite, SAP Business One, ERPNext and custom ERPs. For a trade or a clinic the first connection is usually the diary or job management system, so the agent can check a slot and write the booking itself. For an online shop it is the order data in Shopify or WooCommerce.

Our UK AI development page gives 6 to 14 weeks for a focused first project, from kick-off to live use, and a clear, narrow job shortens it. One WhatsApp number, one connected system and replies only is a narrow job. Two things sit on Meta’s side of the schedule, which are registering the number and display name and getting templates approved, so we start both early.

Yes. Inside the service window Meta’s Cloud API supports text, images, documents, audio, up to three reply buttons, list menus, a button that asks the customer to share a location, and WhatsApp Flows, which are short forms inside the chat for jobs such as booking an appointment. A heating engineer’s customer can send a photo and a location, and a patient can pick a slot from a list, without leaving WhatsApp.

The WhatsApp Business app, with its greeting, away message and quick replies, is free to download and use. A custom AI chatbot connected to your systems is a build. A1 Automation London’s UK pricing guide, last updated 14 July 2026, puts typical UK setup for a custom AI chatbot at £8,000 to £60,000 or more. That range covers AI chatbots in general. Meta’s message charges are separate and are on its rate card. FactoryJet quotes a fixed price in writing after a short scoping call.

The WhatsApp Business app is free to download and, in Meta’s words, free to use. The WhatsApp Business Platform is different. Meta charges the business for each message it delivers, at a rate set by the message category and the recipient’s country, and publishes the rates. Meta changed how it charges for replies inside the service window on 1 October 2026, so check the date of any guide you read against Meta’s pricing page.

The free route is the WhatsApp Business app. Its greeting message welcomes new customers, its away message replies outside your hours, and quick replies store answers you send often. That is automation without AI and without the Platform. Any chatbot on the Platform, whatever the tool itself charges, sends messages that Meta bills under its published rate card. A bot that reads your diary or order system is a build.

We do, with you. FactoryJet quotes the build and the ongoing support as fixed prices in writing after a short scoping call, and keeps managing the servers, AI, APIs and maintenance so your team does not have to. Support covers reviewing transcripts with you, updating approved answers, submitting new templates, and adjusting the agent when Meta changes its rules, as it did in January and October 2026.

Yes. The agent, its prompts, its approved answers, the integrations and the documentation are yours. The WhatsApp account, the number, the display name and the templates sit in your own Meta business portfolio. If you later move support in-house or to another firm, everything is already in your name.

Yes. Before you sign, we show you working software built on your own data. For a WhatsApp agent that is a demo answering from your sample FAQs, price list and booking rules, so you can check its replies against what your team would say. You see how it handles your real questions before any contract.

On the ICO’s wording, yes. PECR’s rules cover electronic mail, and the ICO’s guidance lists in-app messages and direct messaging on social media alongside email and texts. The rule is that you must not send unsolicited marketing to individuals unless they have specifically consented or the soft opt-in for existing customers applies. The ICO’s page does not name WhatsApp, so confirm how it applies to your messages with your data protection adviser.

Not if it only gives information. The ICO says messages sent purely for administrative or customer service purposes do not count as direct marketing, provided they do not promote anything. A reminder of tomorrow’s appointment or a dispatch notice fits that. Add a discount or a product suggestion and the ICO says the message becomes direct marketing. Meta draws the same line, and files a template that mixes an update with a promotion as marketing.

The ICO’s guidance on the right to be informed says that if you apply AI to personal data you should be upfront about it and explain your purposes, and that privacy information must be given at the time you collect someone’s data. A chat that opens by saying the customer is talking to an automated assistant, with a link to your privacy notice, follows that guidance. We write that opening line into the agent.

For the admin side, yes. That means booking, moving and cancelling appointments, directions and what to bring. Meta’s policy says not to use WhatsApp to send or request health-related information where regulations prohibit sending it to systems without heightened protections, and it restricts medical and healthcare products as a category. So the agent keeps away from symptoms and clinical questions and hands those to your staff. Confirm the detail for your practice with your data protection adviser.

It depends on the product. Meta’s help page for Meta Business Agent says chats where it is connected are collected by Meta to improve AI at Meta. For a custom agent, section 4.7 of Meta’s Platform terms says that where an AI provider acts as your Solution Provider, Platform data must not be used to create, develop, train or improve AI models, apart from fine-tuning a model for your exclusive use. We build so that customer data stays in your own accounts.