Como Configurar a API do WhatsApp Business 2026
Aprenda a configurar a API do WhatsApp Business passo a passo — elegibilidade, escolha do BSP, aprovação de templates e erros comuns resolvidos.
O objetivo de anúncios Chat on WhatsApp da Meta direciona cliques diretamente para uma conversa no WhatsApp. Veja como configurar e gerenciar o volume gerado.
Este artigo ainda não está disponível no seu idioma. Mostrando a versão em inglês.
You spend money on a Meta ad. Someone clicks. They land on a landing page. They fill in a form. Maybe.
That's the traditional flow — and conversion rates have been dropping for years. Form fills on mobile are clunky. Landing pages lose people in seconds. And after all that, you still have to chase leads through email.
Meta's "Chat on WhatsApp" ad objective changes the equation entirely. Instead of routing the click to a landing page, it opens a WhatsApp conversation directly between the buyer and your business. The friction disappears. The lead becomes a real conversation — instantly.
Meta launched this objective on April 7, 2026. If you're a business that already uses WhatsApp to talk with customers, this is the most relevant ad format you can run right now.
This guide covers everything: how the objective works, how to set it up, what happens when a user clicks, and what you need to have in place so you don't lose leads in the follow-up.
The "Chat on WhatsApp" objective is a dedicated campaign type in Meta Ads Manager. When someone clicks your ad, instead of being redirected anywhere, their WhatsApp app opens with your business pre-loaded and a starting message ready to send.
One tap, and they're in a conversation with you.
This is different from earlier click-to-WhatsApp formats that existed as a call-to-action button within other campaign objectives. Meta has now elevated this into its own dedicated objective — with its own optimization signals, its own delivery algorithm, and its own reporting metrics.
What it's good for:
What it's not for:
Understanding exactly what happens after a click is essential — especially for setting up the right systems on your end.
Step 1 — The ad appears in the feed. The user sees your ad in Facebook, Instagram, or the Audience Network. The CTA button reads "Send Message" or similar.
Step 2 — User taps the CTA. Meta's app opens WhatsApp (or the web version) directly with your business number pre-loaded.
Step 3 — The opening message loads. You can pre-fill a greeting message — something the user sees in their compose field and can edit or just send as-is. A well-crafted opening message ("Hi, I saw your ad about [product] — I'd like to know more about pricing") dramatically increases the send rate.
Step 4 — The user sends the message. At this point, a 24-hour messaging window opens on your side.
Step 5 — Your team (or chatbot) responds. This is where your setup determines whether you convert the lead or lose it.
Every business that runs Chat on WhatsApp ads needs to understand Meta's 24-hour messaging window — because it's the single biggest lever between a lead and a lost contact.
How it works: When a user sends you a message — including via an ad click — a 24-hour window opens. Within that window, your team can reply freely: any message format, any content. Once the 24-hour window closes, you can only send pre-approved template messages (also called HSMs).
Templates are fine for structured follow-ups. But they're not a substitute for responsive human conversation in the critical first minutes after a lead clicks your ad.
What breaks campaigns that don't account for this:
What actually works:
This is exactly why ad-driven WhatsApp lead generation and a proper shared inbox tool are inseparable. Without one, the other underperforms.
Before you open Meta Ads Manager:
1. Create a new campaign. Select "Chat on WhatsApp" as the objective. This is under the "Engagement" category in Ads Manager as of April 2026.
2. Set your audience. Standard audience targeting applies — location, demographics, interests, custom audiences, lookalikes. For high-performing WhatsApp lead gen: warm custom audiences (website visitors, video views, Instagram engagers) convert better than cold traffic at this stage.
3. Set your budget and schedule. Start with a learning-phase-friendly budget. Meta needs approximately 50 conversations per week to exit the learning phase — size your budget to reach that threshold within 7 days.
4. Create your ad. Use image or video creative. Carousel format works well for showing multiple products or use cases before the conversation opens.
5. Configure the opening message. This is the pre-filled text the user sees in their WhatsApp compose field. Best practices:
6. Add a call-to-action button. "Send Message" is the standard. "Chat on WhatsApp" is the option you'll see in the CTA selector.
7. Review and publish. Meta will review the ad (typically under 24 hours). Once approved, it goes live.
Running a Chat on WhatsApp campaign without a shared inbox is like opening a shop without enough staff at the till. The traffic arrives — and then leaves.
Here's what a solid conversation-handling setup looks like:
When ad-driven conversations start arriving at volume, a single WhatsApp Business App account managed by one person breaks down immediately. You need a shared inbox where multiple agents can see, claim, and respond to conversations — with full visibility into what's been replied to and what hasn't.
WhatsTeam's shared inbox connects your WhatsApp Business API number to a single team workspace. Every agent sees every incoming conversation. Conversations can be assigned, transferred, and tracked from first contact to close — without anyone needing access to a shared phone.
The moment a lead clicks your ad and sends a message, they should receive an instant acknowledgment. Not after your team wakes up. Not after the on-duty agent notices the notification. Immediately.
An instant reply does three things:
A simple auto-reply: "Thanks for reaching out! You'll hear from our team within a few minutes during business hours (Mon–Fri, 9am–6pm). Got a quick question? Reply here and we'll pick it up."
After hours, specify when they should expect a reply — and use an automation to queue that conversation for the first available agent in the morning.
Not all leads are the same, and not all agents handle all products. A Chat on WhatsApp campaign for a real estate business might generate leads across three different property types — those conversations should land with the right agent, not whoever happens to be online.
WhatsTeam's routing rules let you define assignment logic: conversations from a specific campaign → assigned to a specific team or agent. This works via UTM parameters passed through the ad link, or via keyword triggers in the opening message.
You will have conversations where the 24-hour window closes before the lead converts. That's normal — not every lead closes in the first exchange.
For out-of-window follow-ups, you need pre-approved WhatsApp template messages. These templates must be approved by Meta in advance and fall into three categories: Marketing, Utility, and Authentication.
For ad-driven lead follow-up, Marketing templates are most relevant. A good follow-up template example:
"Hi {{1}}, following up from our conversation earlier this week. We still have availability for [product/service]. Would you like to schedule a quick call? [link]"
WhatsTeam's template manager handles template submission, approval status tracking, and campaign assignment — so your team isn't manually juggling which templates have been approved and which are pending.
The lead initiating the conversation by clicking your ad and sending the opening message constitutes implicit opt-in under Meta's Commerce Policy. The user chose to start the conversation.
However: this does not grant you unlimited permission to send marketing messages in perpetuity. The user's opt-in is for the conversational context they initiated. If you want to send ongoing marketing templates to this user after the conversation ends, you need to explicitly collect opt-in consent within that conversation — and store a record of it.
Best practice: ask for consent to follow up within the first conversation. "Would it be okay if we occasionally send you updates on our latest offers via WhatsApp? You can opt out any time by replying STOP."
For users in the EU/EEA, standard GDPR rules apply. WhatsApp messages containing personal data (name, phone number, purchase intent) must be handled in accordance with your privacy policy. You should:
Meta prohibits the following in WhatsApp business messaging:
Chat on WhatsApp ad conversations are user-initiated, which keeps you in compliance from the start. The risk emerges in follow-up — if you use Marketing templates aggressively with users who haven't explicitly opted into ongoing marketing, your account can be flagged.
Maintain a clean opt-in list, honor opt-outs immediately, and keep your template content relevant to what the user initially inquired about.
Does "Chat on WhatsApp" work with the regular WhatsApp Business App?
You can connect a Business App number to a click-to-WhatsApp ad button — but the dedicated "Chat on WhatsApp" campaign objective is optimized for WABA (WhatsApp Business API) connections. For anything beyond a very low volume of leads, the Business App's 5-device limit and lack of shared inbox functionality will become a bottleneck quickly.
How much does it cost compared to regular lead gen ads?
Cost per conversation varies widely by industry and audience. Early data from Meta's own case studies (Q1 2026) shows cost per conversation 20–40% lower than equivalent cost-per-lead on lead form ads in certain verticals. The caveat: a "conversation started" is not the same as a "qualified lead" — you'll need to track how many conversations result in actual sales opportunities to get a true cost comparison.
Can I use a chatbot to handle the initial response?
Yes. Many businesses run a chatbot for the first 1–2 messages — qualification questions, availability check, routing logic — before handing off to a human agent. The key is making the handoff feel natural, not robotic. WhatsTeam's automation builder supports this flow: trigger an automation sequence on inbound message → collect key info → assign to agent → notify agent with conversation context.
What happens if I get more conversations than my team can handle?
This is a good problem — and a real risk if your campaign performs. Set daily conversation caps in Ads Manager during the launch phase. Monitor your response time metrics daily. If your average first response time is creeping above 15 minutes, either increase team capacity or reduce daily ad spend until you're back to a manageable volume.
Can I retarget people who started a conversation but didn't convert?
Yes. Meta allows you to create custom audiences from users who "messaged your business" — this audience is available in Ads Manager. You can retarget them with a different ad creative, a special offer, or a more direct CTA.
Chat on WhatsApp ads are the shortest path between a paid impression and a live customer conversation. The format removes the landing page, removes the form, removes the email back-and-forth — and opens a direct channel in the place where your customers already communicate.
But the ad is just the trigger. What happens after the click — in the first 60 seconds, the first 24 hours, the first follow-up — is where you win or lose the lead.
A shared team inbox. Instant auto-replies. Routing rules that get conversations to the right person. Templates ready for out-of-window follow-up. That's the infrastructure the ad objective requires.
WhatsTeam connects to your WhatsApp Business API and gives your team that infrastructure out of the box. Setup takes under two minutes. Start your 14-day free trial — no card required.
Aprenda a configurar a API do WhatsApp Business passo a passo — elegibilidade, escolha do BSP, aprovação de templates e erros comuns resolvidos.
Aprenda a calcular o ROI do seu marketing no WhatsApp com nosso guia passo a passo. Inclui benchmarks, dados por indústria e uma calculadora gratuita.
Ferramentas