To automate WhatsApp messages for a business, you have two routes. The free WhatsApp Business app can send a greeting, an away message and saved quick replies from one phone. For anything more (bots that answer questions, order and booking notifications sent by your website, reminders, campaigns to opted-in customers and a shared team inbox) you need the official WhatsApp Business Platform, the Cloud API, through a platform such as our WASL. The rules that matter most are opt-in, approved templates for messages you start, and the 24-hour window for free-form replies.
This guide covers what each route can do, which messages to automate first, how your website fits in, what it costs and how to set it up without getting your number restricted.
Route 1: the free WhatsApp Business app.
The WhatsApp Business app, free on Android and iPhone, includes three simple automations: a greeting message sent the first time someone writes to you or after a period of silence, an away message outside the hours you set, and quick replies, which are saved answers you insert with a shortcut. It also has labels to sort chats and a catalogue to show products.
That is enough for a small business where one person answers on one phone. It isn't real automation, though: nothing is sent when an order is placed on your website, nobody else can reply from the same number unless they use linked devices, and there are no bots that understand a question and answer it.
Route 2: the WhatsApp Business Platform (Cloud API).
The WhatsApp Business Platform is Meta's official API. Your number runs in the cloud instead of on a phone, so your website, store, booking system or CRM can send messages automatically, bots can reply around the clock, and several agents can share one inbox. You use it through a platform that provides the inbox, bot builder and integrations, because the API itself has no screen to work in.
Since 2026 a number can use the WhatsApp Business app and the Cloud API at the same time (Meta calls this coexistence), so you don't have to give up the app on your main phone to add automation.
What to automate first.
- Order and booking confirmations, sent the moment a customer completes checkout or a reservation on your website.
- Delivery and status updates triggered by your store or system, which cut the "where is my order?" messages.
- Appointment and payment reminders, which reduce no-shows and late payments.
- Answers to the questions everyone asks: prices, opening hours, location, delivery areas and how to order.
- Lead capture: collect a name, the service someone wants and a good time to call, then pass the chat to a salesperson.
- Abandoned-cart reminders for e-commerce, sent only to customers who agreed to receive messages.
How your website connects to WhatsApp.
A website plays two roles. First, it's the entry point: a click-to-chat button or link opens WhatsApp with a pre-filled message, so a visitor can ask a question in one tap instead of filling in a form. Most visitors in the Gulf would rather send a WhatsApp than wait for an email reply, and from that first message a bot can greet them, answer common questions and collect details before a person joins.
Second, the website is a trigger. When something happens on your site, such as an order, a booking, a form submission or a payment, it calls the WhatsApp platform, which sends the matching template to the customer. On WooCommerce or Shopify this is usually a plugin or webhook; on a custom site it's a short integration with the platform's API.
The rules: templates, the 24-hour window and opt-in.
- Opt-in first: you may only start conversations with people who agreed to receive WhatsApp messages from you, for example with a tick box at checkout. Messaging people who never opted in leads to blocks, reports and a restricted number.
- Templates for messages you start: any message you send first, such as an order confirmation, a reminder or a campaign, must use a template Meta has approved, in the category it belongs to (marketing, utility or authentication).
- The 24-hour window: when a customer messages you, you can reply freely, by a person or a bot, for 24 hours after their last message. After that, only templates can be sent.
- A human route: always give customers a way to reach a person, and hand over chats the bot can't handle instead of looping.
What WhatsApp automation costs.
There are two costs. Meta charges per message for templates, with rates that depend on the category and the recipient's country, and from 1 October 2026 it also charges for service messages (free-form replies inside the 24-hour window) after the first 1,000 a month on each business number. On top of that you pay for the platform you use. With WASL that's pay-as-you-go credits, so you can see what each message costs and set spending limits.
Automation usually pays for itself through the staff time it saves and the orders it recovers, but it's worth checking which automated replies are useful before sending thousands of them, now that replies aren't free.
Setting it up, step by step.
- Verify your business in Meta Business Manager and choose the number you'll use. It can be the number your customers already know.
- Connect the number to the WhatsApp Business Platform through your chosen provider.
- Write and submit your templates: order confirmation, shipping update, reminder and any campaigns.
- Connect your website or store so each event sends the right template, and add a click-to-chat button to your key pages.
- Build the bot for common questions, with a clear handover to your team.
- Test everything with your own phone, then switch it on and watch the first weeks of conversations closely.
Mistakes that get numbers restricted.
Sending campaigns to bought or old contact lists, sending too often, writing templates that hide their purpose and leaving customers stuck in a bot are the usual causes of low quality ratings and messaging limits. Keep campaigns relevant, let people opt out easily, and measure replies and blocks, not just messages sent.
WASL, our WhatsApp platform, connects your website to WhatsApp end to end: click-to-chat capture, auto-reply bots, order and booking notifications, broadcasts to opted-in customers and a shared team inbox, on the official Cloud API. Ask us for a demo on your own number, or book a free consultation and we'll map out which messages to automate first.