Click-to-WhatsApp ads, explained

What a Click-to-WhatsApp ad is

It's an ordinary Facebook or Instagram ad with one difference: the button says "Send WhatsApp message" instead of sending people to a website. Tap it, and a chat with the business opens in WhatsApp, usually with a first message already typed for the customer.

That's why so many local businesses use them. There's no landing page to build and no form to fill in. The customer asks their question in the app they already use all day, and the business gets a real conversation, with the customer's number, instead of a lead sitting in a spreadsheet.

You'll also see them called CTWA ads, or ads that click to WhatsApp, which is Meta's own name for them.

What they cost

There are two separate bills, and most of the confusion comes from mixing them up: what you pay Meta for the ad, and what (if anything) you pay for the WhatsApp messages that follow.

1. The ad itself

You set the budget, daily or for the whole campaign, and Meta runs an auction for every person who sees your ad. There is no fixed price per click or per chat. It changes with your city, your audience, the time of year, how many other businesses are bidding for the same people, and how good your ad is.

So ignore anyone who quotes a single number. Start with a small daily budget for a week, then look at Cost per messaging conversation started in Ads Manager. That is your real price for one chat, for your business, today.

2. The WhatsApp messages

This depends on which WhatsApp you answer from.

WhatsApp Business app

The free app on your phone. Meta doesn't charge for messages sent from it, whether the chat came from an ad or not. The limit is people, not money: it's one phone (plus a few linked devices) and someone has to be holding it.

WhatsApp Business Platform (the API)

What software, chat tools and AI agents connect to. Since 1 July 2025 Meta charges per message the business sends, and messages from customers are always free. Rates depend on the message type and the customer's country.

3. The cost nobody adds up

Slow replies. You paid for the tap. If the answer comes three hours later, or the next morning because the ad ran at night, many of those customers may already have asked someone else. That never shows up in Ads Manager, but it can be the biggest cost of the whole campaign.

How to set one up

Meta moves its menus around, but the steps stay roughly the same:

1. 1Use a WhatsApp Business number, not a personal one, and connect it to your Facebook Page (in the Page settings, under linked accounts).
2. 2In Ads Manager, create a campaign. Engagement is the usual choice; Sales and Leads also let you send people to a chat.
3. 3At the ad set level, set where conversations happen to messaging apps, and choose WhatsApp.
4. 4Choose your audience, budget and schedule. Only run the ad when someone, or something, can answer.
5. 5In the ad itself, write the welcome message and add a few ready-made questions customers can tap, such as "What's the price?" or "Is it available this week?"
6. 6Publish. Meta reviews the ad before it starts running.

Need words for the welcome message and the replies after it? Our WhatsApp auto-reply samples include versions written for ad leads.

How to answer every lead

The ad's job ends when the chat opens. Everything after that is yours, and it's where the money is made or lost.

Common mistakes

• Running ads around the clock to a number that nobody watches after 7 pm.
• A welcome message that ignores what the ad promised.
• Answering "how much?" with "please call us".
• Sending people from WhatsApp to a website form, which is the step the ad was meant to remove.
• Measuring cost per click instead of cost per booking.

Questions