Conversational commerce is selling through two-way messages: a customer asks a question in WhatsApp, Messenger, Instagram direct messages, SMS or a website chat window, and the conversation itself carries them towards a booking, a quote or a purchase. The chat replaces, or sits alongside, the product page and the contact form.
How conversational commerce works
Most conversations start in one of three ways. A customer taps a “message us” button on a website or Google Business Profile. They click an advert built to open a chat, such as a click-to-WhatsApp ad on Facebook or Instagram. Or a business sends a message to someone who has agreed to hear from it, such as a delivery update or a reminder.
From there, replies come from a person, from software, or from both. A chatbot can answer common questions, collect a postcode or show available slots, then pass the chat to a member of staff when it gets specific. Many businesses use an automated chat flow for the first few steps, then a human closes the sale.
Larger volumes usually run through the WhatsApp Business Platform or a shared inbox that pulls in several channels. At the time of writing (October 2026), WhatsApp lets a business reply freely within 24 hours of a customer’s last message; outside that window, it can only send pre-approved template messages, and those are charged.
Why it matters
For many UK service businesses, a chat is simply how customers prefer to make contact. Someone looking for a plumber, a beautician or a wedding venue often has one or two questions before they will commit, and they would rather send a quick message than fill in a form and wait for a call. Answering in minutes, not hours, is often the difference between winning and losing that customer.
Chat also reveals what stops people buying. The questions that come up again and again (delivery times, parking, whether you cover their area) are the gaps on your website.
The UK rules matter here. PECR’s rules on electronic marketing cover marketing messages sent through messaging apps and by SMS. Replying to a customer who messaged you is customer service. Sending them promotions later is marketing, and needs their consent, or the “soft opt-in” where they bought or negotiated to buy from you, were offered an opt-out at the time, and the message is about similar products. Each message must also offer a simple way to opt out.
Common mistakes
- Opening a channel nobody watches. A WhatsApp button that gets a reply two days later does more harm than not having one.
- Bots that trap people. If a customer cannot reach a person when the bot fails, they leave.
- Treating every chat contact as a marketing list. Someone who asked about opening hours has not agreed to weekly offers.
- No tracking. Without recording which chats came from which advert, paid campaigns aimed at messaging look as if they produce nothing.
- Losing the conversation history. Chats kept on one staff member’s phone vanish when that person leaves.
How to act on it
Start with one channel your customers already use, and set opening hours you can honour. Write short answers to your ten most common questions so replies are quick and consistent. Agree how chats are recorded, who owns the account, and how long messages are kept, and make sure your privacy notice covers it.
Record the outcome of each chat (booked, quoted, lost) so you can see what the channel is worth. Then decide whether to drive more conversations with paid ads. Setting up and measuring click-to-WhatsApp and Messenger ads is one of the ways I help businesses whose customers would rather message than fill in a form.