What a WhatsApp chatbot costs to run in South Africa

The four cost lines

Only the first line is set by Meta. The others depend on the provider and the build, which is why two quotes for “a WhatsApp chatbot” can differ so much.

How Meta charges

A chatbot runs on the WhatsApp Business Platform, the API version of WhatsApp for businesses. That is not the free WhatsApp Business app. Since 1 July 2025, Meta has charged per message on the Platform, replacing the older conversation-based model.

• Message categories. Template messages, which can be sent at any time once Meta has approved them, are marketing, utility or authentication. Non-template replies, which can only be sent while a customer-service window is open, are service messages.
• The 24-hour window. When a customer messages or calls your business, a 24-hour customer-service window opens, and each new message from them restarts it. Outside the window, you can only send approved templates.
• Country rates. Rates depend on the message category and the recipient’s country calling code. For a South African customer, that is +27. Meta publishes rate cards on its pricing page.
• Free entry points. When a customer starts the chat from a click-to-WhatsApp ad, messages in that window are not charged, and Meta says the window “may remain open for up to 7 days”.

What changed on 1 October 2026

Meta’s pricing page states that it “reflects pricing updates that became effective as of October 1, 2026”. Two changes matter most for a service business:

1. Service messages now have a free tier, not unlimited free use. “Each business phone number has one free tier of 1,000 delivered service messages per month.” Service messages beyond that are charged. Meta lists exceptions for certain eligible governments and non-profits.
2. Utility templates inside the window are charged. Utility templates sent while a customer-service window was open used to be free. From 1 October 2026 they are priced as regular utility messages.

Guides written before October 2026 describe service replies as free. For a chatbot that holds many short conversations, that difference can be most of the Meta bill, so check the date on any cost guide you rely on, including this one.

Estimating your monthly Meta fee

You need three numbers from your own business and the current rates for +27 numbers from Meta’s rate card:

For example, a number that sends 1,600 service replies in a month has 600 chargeable service messages. If it also sends 200 utility templates (repair updates the customers asked for) and no marketing, its Meta fee is about 600 × the service rate plus 200 × the utility rate. Count messages, not conversations: a chatbot that answers in three short messages costs three times as much as one that answers in one.

Meta also has volume tiers and categories not covered here, such as authentication. Use the rate card, not this example, for a real budget.

Provider fees, AI usage and setup

• Provider fees. Most businesses reach the Platform through a provider that supplies the shared inbox, templates and integrations. As one published example, a South African provider listed its WhatsApp plan from R999 a month excluding VAT (three users, one number) in October 2026, and states that Meta’s message fees are billed separately by Meta. Plans vary widely, so check what each one includes: numbers, users, the inbox, and whether AI is part of it.
• AI usage. If the chatbot uses an AI model to understand and answer, the model is billed by usage. It grows with the number and length of conversations. Some providers include it; others pass it through.
• Setup and upkeep. Designing what the assistant may say, drafting templates for Meta’s review, connecting your inbox, spreadsheet or CRM, testing, and changing things later. This is usually the largest difference between quotes.

What is free, and what it cannot do

The free WhatsApp Business app gives you a business profile, greeting and away messages, quick replies and labels. A click-to-chat link (wa.me) opens a chat with your number. Both are useful, and neither costs anything. But replies are still typed by a person: there is no assistant that holds the conversation, collects structured details or follows up automatically. That needs the Platform and the costs above.

Keeping costs predictable

• Answer in fewer, clearer messages. Message count drives the Meta fee.
• Collect everything inside the window. Ask for photos and details while the customer is engaged, rather than chasing them later with templates.
• Send only templates customers asked for. Repair or order updates the customer requested are utility messages. Promotions are marketing, cost more and need consent under POPIA.
• Hand over early. A person resolving a confusing chat costs less than ten automated messages going round in circles. WhatsApp’s policy also requires “prompt, clear, and direct escalation paths” for automated experiences.
• Review the first month. Compare the actual message counts by category with the estimate, then adjust.

Devincam builds WhatsApp assistants on the official Platform and includes every one of these cost lines in a written quote. See how a WhatsApp chatbot works, or read Website chatbot or WhatsApp chatbot: which first?