AI Agent for WhatsApp: your company answers, qualifies and sells 24 hours a day
The agent replies within seconds to people who arrive through Google, the AIs, your website or your ads, with your brand's information and tone of voice, and hands over to your team the conversations that need a person. Strategy, implementation and ongoing follow-up by Flowup.
By Guto Bertoncini, founder and lead strategist of FlowupUpdated on 15 min read
5.0 on GoogleSince 2011Proprietary B.I.N.A. Method
- Handles customer service on WhatsApp 24 hours a day, through Meta's official API, with answers checked against your company's knowledge base.
- Qualifies through conversation, schedules in Google Calendar and follows up with people who stopped replying.
- Recovers abandoned carts and pending boleto and Pix payments (Brazil's bank slip and instant payment methods) when the checkout is Hotmart, Kiwify, Eduzz or Guru.
- Calls in a person from the team when the conversation requires it, with the context already summarized.
- Uses the same knowledge base and the same tone of voice as your website and your Brand Book.
- Strategy, implementation, integrations and ongoing follow-up by Flowup, from the diagnosis to the monthly report.
An AI agent for WhatsApp is a system that talks to a company's customers and decides the next step of each conversation, following the rules and the information of the business. It understands text, audio and images, answers based on what the company has taught it and takes action: it schedules, sends a document, follows up or transfers to a person.
It is different from a menu bot, the kind that asks you to type 1, 2 or 3. A menu bot only follows a fixed script. The agent understands the question as it comes in, remembers what has already been said and chooses the right action for that moment in the sale.
| Aspect | Menu bot | AI agent |
|---|---|---|
| How the customer talks | Picks numbered options | Writes, sends audio or an image, in their own way |
| Where the answers come from | Fixed texts | The company's knowledge base, checked before answering |
| What it does | Routes to departments | Qualifies, schedules, follows up, recovers sales and calls in the team |
| Context | Starts from scratch with every message | Knows where the contact came from and what has already been discussed |
| When it calls in a person | When the customer picks the option | When the company's rule requires it or when the customer needs it |
Features
What the agent does on your WhatsApp
Every conversation follows the rules of your operation: what can be said, what needs a person and what the next step is.
Replies in seconds
Answers questions about services, products, lead times, payment methods and policies, based on what the company has approved.
Qualifies
Understands the need, the profile and the urgency before handing over to sales, and records what it heard.
Schedules
Checks availability in Google Calendar, agrees on a time with the customer and records the appointment.
Follows up
Gets back to people who stopped replying, at the time and with the message defined by the company, without being pushy.
Recovers sales
Receives notices of abandoned carts and pending boleto and Pix payments from the checkout and resumes the conversation with the context of the purchase.
Calls in the team
Hands over to a person when the conversation requires it, with the summary ready so that nobody repeats questions.
The checkout integrations available today are Hotmart, Kiwify, Eduzz and Guru. Website forms, lead capture pages and internal systems connect to the agent by webhook, defined during implementation.
Example
How a conversation unfolds
At 9:40 p.m., a consulting firm receives a contact who arrived through Google. Nobody on the team is online.
- Customer
- Hi! I saw your website. Do you work with engineering companies?
- Agent
- Hi, Marina! Yes, we do. Most of our clients today are in engineering and construction. Which area do you need support with: design projects, public bids or construction management?
- Customer
- Construction management. We have three job sites under way and a lot of rework.
- Agent
- Got it. So the consultant arrives prepared: how many people look after the job sites today, and do you already use a management system?
- Customer
- About eight people, and we use spreadsheets.
- Agent
- Thank you. I have Thursday at 10 a.m. or Friday at 3 p.m. for a 30-minute conversation with the consultant. Which works better?
- Customer
- Friday at 3 p.m.
- Agent
- All set: Friday at 3 p.m. The invitation is on its way to your email, and the consultant will receive the summary of this conversation.
Illustrative conversation, with a fictional company and fictional names. During implementation, the wording, the qualification questions and the scheduling rules are defined with your team.
Ecosystem
From search to the conversation that closes the deal
The agent is the last stage of a path that Flowup already takes care of. Each stage passes the information on to the next.
Found
SEO puts the company in front of the right searches on Google.
Cited
GEO and AEO prepare the company to be described and recommended by AIs with the correct facts.
Visited
The website, landing pages and forms present the offer and lead to WhatsApp with the source recorded.
Answered
The agent replies, qualifies and schedules with the same knowledge base as the website.
Measured
A single report shows where each conversation came from, what people ask and what turned into business.
The questions that reach WhatsApp also flow back to marketing: they become answers on the website, content topics and adjustments to the knowledge base. This is the B.I.N.A. Method applied to customer service: the Information Base feeds the agent, Intent Intelligence guides qualification, the Authority Core keeps the answer consistent on every channel and the Digital Asset now includes customer service.
How we work
What you get in each layer of the agent
Flowup's agent runs on Meta's official WhatsApp API. Flowup takes care of the strategy, the knowledge base, the tone of voice, the integrations, the implementation and the ongoing follow-up.
| Layer | What you get |
|---|---|
| Conversation engine and official WhatsApp API | 24-hour customer service, rule-based decisions, follow-up and sales recovery |
| The agent's knowledge base | Correct answers, consistent with what the website and the public AIs say about the company |
| Tone of voice | The agent speaks the way your brand speaks, based on the Brand Book |
| Source of the contacts | The agent knows whether the person came from Google, an AI, an ad or a form |
| Integrations | Website, forms, calendar, checkout and CRM working together without rework |
| Measurement and monthly improvement | Report with frequent questions, bottlenecks and conversions by source |
You deal with Flowup from the diagnosis to the ongoing follow-up. The processing of conversation data follows the rules described in the security section.
Flowup uses what it implements: the agency's first contact on WhatsApp is handled by Iasmin, our AI agent. Talk to Iasmin
B2B companies, consulting firms and service businesses
Contacts that arrive outside business hours and go cold. The agent qualifies, schedules the meeting with sales and hands the context to the salesperson.
Clinics and medical practices
An overloaded front desk and no-shows. The agent answers routine questions, books, confirms and sends reminders for appointments, and hands over to the team everything that is clinical.
Digital businesses, courses and digital product creators
Launch peaks and sales that stall at checkout. The agent handles the peak and follows up on abandoned carts and pending boleto and Pix payments.
Companies with a small team
Nobody to reply at night and on weekends. The agent answers 24 hours a day and knows when to call in a person.
When we do not recommend the agent, or not yet
- Low volume of conversations: the WhatsApp Business app, with Meta's free agent, may be enough.
- Disorganized company information: the first step is the knowledge base, and the agent comes afterward.
- Decisions that require a professional, such as a medical diagnosis or legal advice: the agent only does the triage and hands over to the right person.
Comparison
Meta's free agent or a specialized agent?
In June 2026, Meta launched its own AI agent for businesses on WhatsApp. It handles the basics well. The difference shows when the conversation is part of a sales operation.
| Aspect | Meta Business Agent | Agent implemented by Flowup |
|---|---|---|
| Who it is for | Small businesses that want to answer questions and schedule without setup | Companies where WhatsApp is a sales channel, with volume, a team and systems |
| Integrations | E-commerce and customer service platforms through the API, in the offering for large companies | Google Calendar, Hotmart, Kiwify, Eduzz, Guru and a webhook for the website, forms and internal systems |
| Sales recovery | Not among the announced features | Abandoned carts and pending boleto and Pix payments, with follow-up in stages |
| Rules and knowledge base | Learns from the administrator's corrections | The operation's rules and answers checked against the knowledge base built by Flowup |
| Strategy and measurement | Up to the company | Source of each conversation, monthly report and connection to SEO, GEO, website and brand |
| Cost | Free at launch, with a subscription announced | Defined in a proposal: implementation, ongoing follow-up and license |
Information about Meta according to its announcement of June 3, 2026 and the June 5, 2026 report by Exame, a Brazilian business magazine (see sources). Meta's plans may change.
Implementation
How we implement the agent
Each stage ends with a deliverable that you approve before the next one begins.
Diagnosis of the operation
How WhatsApp is used today, how long it takes to reply, what people ask most and which systems need to talk to each other.
Knowledge base and tone of voice
Facts, services, policies and approved answers, in the brand's tone of voice. This is the Information Base of the B.I.N.A. Method.
Flows, integrations and tests
Qualification, scheduling, follow-up, sales recovery and handover to the team, tested with real conversations before going live.
Monthly follow-up
Review of conversations, updates to the knowledge base, rule adjustments and a report on what changed.
| Part | What it includes | How it is charged |
|---|---|---|
| Customer service diagnosis | A conversation about the operation, a review of your current WhatsApp and a written recommendation | Initial conversation with no commitment |
| Implementation | Knowledge base, tone of voice, flows, integrations, tests and team training | Fixed-price project |
| Operation and improvement | Technology license, review of conversations, updates to the knowledge base and monthly report | Monthly |
The investment is quoted on request and, for international projects, the price is defined in a proposal. It depends on the volume of conversations, the channels, the integrations and the use cases. When Meta's per-message fees apply, as in campaigns, they appear separately in the proposal.
Security
Security, Brazil's data protection law (LGPD) and Meta's rules
Trust is a condition for selling on WhatsApp. In Brazil, most people are concerned about their own data.
- 77%of Brazilians usually talk to companies on WhatsApp.Opinion Box, 2026
- 61%of Brazilians do not feel comfortable sharing sensitive information through the app.Opinion Box, 2026
- 77%of Brazilians are concerned about the collection of personal data by AI systems.Opinion Box, 2026
How the agent works within the rules
- Official WhatsApp API (WhatsApp Business Platform), with the rules on sending, consent and phone number quality defined by Meta.
- A customer service and sales agent for the business itself, a use that Meta allows. Meta's January 15, 2026 restriction on general-purpose AI assistants is suspended in Brazil by a decision of Cade, the Brazilian antitrust authority, upheld by its tribunal in March 2026. Cade treated the per-message fee that Meta created for those assistants as non-compliance with that decision and kept a daily fine in April 2026; the fee does not apply to a company's own customer service.
- Campaigns only for contacts who have agreed to receive messages.
- Handover to a person always available, with the rule defined during implementation.
- The agent does not make diagnoses, does not give legal advice and does not ask for data beyond what is necessary.
- Roles defined in the contract: your company is the data controller, and whoever processes the conversations on its behalf acts as the data processor, with a channel for requests from data subjects.
Measurement
How we measure results
The indicators are defined in the diagnosis, with the baseline of your operation.
- Time to first reply, before and after the agent.
- Qualified conversations and meetings or appointments scheduled.
- Sales resumed at checkout, when there is an integration.
- Source of each conversation: Google, AIs, ads, website or form.
- Most frequent questions and the points where customers drop off.
We do not promise a conversion rate or a number of sales. The result depends on each company's volume, offer, audience, rules and sales process.
Tell us how your company handles customer service today
In one conversation, Flowup maps your WhatsApp and shows where an AI agent makes a difference, and where it does not yet. This form is only for the AI Agent for WhatsApp: your answers go straight to the people who take care of the service.
Frequently asked questions
Frequently asked questions about the AI agent for WhatsApp
What people usually ask before getting started.
Is your question not here? Tell us how your company handles customer service today.
Talk about my customer serviceWhat is an AI agent for WhatsApp?
Does Meta allow the use of AI on a company's WhatsApp?
What is the difference between an AI agent and a chatbot?
Who takes care of the agent?
Does Flowup use its own agent?
Do I need the official WhatsApp API?
Can I keep using my current number?
Can the agent make mistakes?
What about Brazil's data protection law (LGPD)?
How much does an AI agent for WhatsApp cost?
Does it work together with my website, my CRM and my marketing?
Transparency
Sources and references
Data and rules cited on this page, checked for the Portuguese edition of this page on September 29, 2026.
- Pesquisa WhatsApp no Brasil 2026, Opinion Box (1,000 people, June and July 2026): survey in Brazil, in Portuguese. 77% talk to companies on WhatsApp; 70% have already bought products or hired services through the app; 61% do not feel comfortable sharing sensitive information; 77% are concerned about the collection of data by AI.
- Pricing on the WhatsApp Business Platform, Meta for Developers: per-message charging since July 1, 2025; campaigns always charged; billing in Brazilian reais for accounts in Brazil since July 1, 2026.
- Service message charging starts October 1, 2026, 360dialog (September 9, 2026): starting October 1, 2026, customer service replies within the 24-hour window are charged after 1,000 messages per month on each number, at the rate of utility messages in the country.
- Not All Chatbots Are Banned: WhatsApp 2026 AI Policy Explained, respond.io (November 3, 2025): restriction on general-purpose AI assistants on the API starting January 15, 2026; customer service, sales, scheduling and notifications for the business itself remain allowed.
- Cade abre inquérito contra Meta e aplica medida preventiva suspendendo Novos Termos do WhatsApp sobre IA, Cade (January 2026): news release, in Portuguese, from Cade, the Brazilian antitrust authority. In Brazil, Meta's new terms on AI on WhatsApp are suspended by a preventive measure, with the inquiry still in progress.
- Tribunal do Cade mantém decisão que libera rivais da Meta AI no WhatsApp, Tecnoblog (March 5, 2026): article in Portuguese. Cade's tribunal upheld the preventive measure, unanimously.
- Cade mantém multa diária contra Meta e WhatsApp por descumprimento de medida preventiva, Cade (April 23, 2026): news release, in Portuguese. The per-message charge for AI chatbots was treated as non-compliance with the measure; the daily fine stays until full compliance is proven.
- Meta passa a cobrar taxa de IAs que operam no WhatsApp, Sindpd (March 9, 2026): article in Portuguese. A per-message fee for providers of general-purpose generative AI; companies that use chatbots in their own customer service are outside the charge.
- Introducing Meta Business Agent, WhatsApp for Business (June 3, 2026): launch of Meta's AI agent for businesses on WhatsApp, Messenger and Instagram; free to get started, with a subscription announced.
- Meta Business Agent: como funciona, quanto custa e como ativar, Exame (June 5, 2026): article in Portuguese. Features, announced plans and limits of Meta's agent for small businesses.
How to cite this page
Flowup Agency. AI Agent for WhatsApp: customer service and sales. Available at: https://flowup.agency/en/ai-agent-for-whatsapp/.
Ready to put your WhatsApp to work on customer service and sales?
Tell us how your company handles customer service today. The conversation starts with the diagnosis.
5.0 on Google · Since 2011 · Case studies with stated sources
