WhatsApp for business marketing and service: what South African SMEs should know

Your customers already message you on WhatsApp. They ask for quotes, confirm bookings and send photos of the part they need. So it is natural to wonder whether you could also use WhatsApp to share specials, remind people about appointments or build a loyal following.

You can, but WhatsApp is a personal space. Used well, it builds trust quickly. Used carelessly, it gets your number blocked and can put you on the wrong side of Meta's rules and POPIA.

Why WhatsApp needs a different approach

Customers see WhatsApp as a place for conversations with people they know. Messages that are helpful and expected are welcome. Messages that feel like spam are not, and customers can block or report a business in a couple of taps.

That feedback matters. Meta's Business Messaging Policy says its systems "may limit the amount of messages a business can send" based on blocks and reports. So the rule of thumb is simple: only send what the customer asked for or would clearly value.

Business app or Business Platform?

Meta offers two products for businesses, and the difference affects what you can do and what you pay.

The WhatsApp Business app

Meta describes the free Business app as being for small businesses communicating with customers from a single device. Its built-in tools include:

• a business profile with your hours, address and website
• greeting messages for new chats and away messages outside business hours
• quick replies for answers you type often
• labels to organise chats
• a catalogue of your products or services
• broadcasts, which send one message to many customers at once

For a small team, setting these up properly is often the best first step.

The WhatsApp Business Platform

The Platform, often called the WhatsApp API, is for medium and larger businesses that need to message at scale or connect WhatsApp to a CRM and other systems. You access it directly with developers or through a Meta business partner, who may charge for their own services.

Useful ways to use WhatsApp

Customer support

This is where WhatsApp shines. Customers can send a photo of the problem, a voice note or their order number, and get help without waiting on hold. Set clear response times, and use away messages so nobody feels ignored after hours.

Product and service updates

Back in stock, new services, holiday hours or a price change: short, relevant updates work well for customers who have asked to hear from you. Keep them occasional and useful.

Appointment reminders and confirmations

Reminders and confirmations are among the most welcome business messages, because the customer expects them. They help reduce no-shows and last-minute confusion.

Feedback

After a job or a delivery, a short message asking how it went is easy to answer. Ask one or two questions, not a long survey.

Community

Some businesses build a following around shared interests: a gym, a school, a garden centre or a training provider. Channels and Communities, explained below, are designed for this.

Key WhatsApp terms in plain words

These terms are often confused. Here is what each one means.

• Broadcasts (Business app): one message sent to several customers, arriving as a private chat for each. Meta has been changing these tools, including limits, paid options and availability by country, so check what your app currently offers.
• Template messages (Business Platform): when a customer messages you, a 24-hour customer service window opens, and you can reply freely. Once it closes, you can only send pre-approved templates, which Meta groups as marketing, utility (such as order or appointment updates) and authentication (such as one-time codes).
• Channels: a one-way broadcast that people choose to follow. WhatsApp says updates appear in a separate Updates tab, followers cannot reply directly (they can react or vote in polls), and admins cannot see a follower's full number unless they have it saved.
• Communities: a way to bring related groups together under one topic, with an announcement feature that lets admins reach all members. Better suited to member-based organisations than to general marketing.

What it costs

The Business app is free to use. Paid extras such as Meta Verified are optional.

On the Business Platform, Meta has charged per message delivered since 1 July 2025. In summary:

• Only template messages are charged, at rates that depend on the template category and the recipient's country.
• Normal replies inside an open customer service window are free, and so are utility templates sent inside that window.
• Messages are also free for 72 hours after a customer contacts you through a click-to-WhatsApp ad or a Facebook Page button.
• Partners may add their own fees.

Meta updates its rates regularly, so check the current rate card for South African numbers before you budget.

Permission first: opt-in and POPIA

Meta's rules

Meta's policy says you may only contact people on WhatsApp if they gave you their number and agreed to receive your messages. You must honour every request to stop, and you should not "spam, or surprise people" with your messages. For the Platform, Meta requires the opt-in to state clearly that the person is opting in and to name your business. It recommends separate opt-ins for different types of messages, such as order updates and promotions.

POPIA section 69

Under POPIA, direct marketing by "electronic communication" is only allowed if the person has consented or is an existing customer. The Act defines electronic communication as "any text, voice, sound or image message sent over an electronic communications network", which appears to include WhatsApp messages.

In practice:

• New contacts must consent first. You may ask for consent only once, and only if they have not refused before.
• Existing customers may receive marketing about your own similar products or services, but only if you got their details during a sale and gave them a free, easy way to object, then and in every message.
• Every marketing message must say who you are and how to opt out.

The Information Regulator issued a guidance note on direct marketing on 3 December 2024. According to legal summaries of the note, silence is not consent, and you should keep a record of people who have refused.

Answering a customer's question is not direct marketing. Sending promotions to a contact list usually is. This is general information, not legal advice, so check your approach with a POPIA adviser.

Where automation fits

As message volumes grow, automation can acknowledge every enquiry, collect key details and send reminders on time. We cover this in how WhatsApp automation can reduce missed enquiries and manual follow-ups, including what automation should not do.

A simple starting plan

1. Set up your Business app profile with hours, address and website.
2. Add greeting and away messages, quick replies and labels.
3. Add your catalogue if you sell products or packaged services.
4. Review your consent wording on forms, quotes, invoices and your website.
5. Keep a record of who agreed to marketing, and who opted out.
6. Decide what you will send and how often. Start with service messages and reminders.
7. Consider the Platform when your team, volumes or system needs outgrow the app.

WhatsApp works best alongside your website, email and social media, not instead of them.

How Kreativworx can help

At Kreativworx, we start with how your customers already contact you. We help South African businesses choose between the Business app and the Platform, set up consent and opt-out properly, and connect WhatsApp to a CRM so conversations do not get lost.

Sources