Answers customers, sells and gives you your time back
WhatsApp chatbot for digital certificate stores in Brazil that leaves no customer unanswered
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
The accountant warns that the company's certificate expires tomorrow and the customer writes in a panic, not knowing which type they need or what to bring. The agent explains each type, sends the document list you set up and books the validation.
See the AI agent demos.
What is the best WhatsApp chatbot for digital certificate stores in Brazil?
The best WhatsApp chatbot for digital certificate stores in Brazil is the one that answers on the number the service point already uses, with the business rules written by you. An AI agent on WhatsApp for a digital certificate store is an automatic assistant that explains the difference between e-CPF and e-CNPJ, A1 and A3, sends the document list for each type as the service point set it up, schedules the time for the in-person or video validation and never asks the customer for a password.
Summary in 7 facts
- The accountant warns that the company's certificate expires tomorrow and the customer writes in a panic, not knowing which type they need or what to bring.
- The agent explains each type, sends the document list you set up and books the validation.
- See the AI agent demos.
- The best WhatsApp chatbot for digital certificate stores in Brazil is the one that answers on the number the service point already uses, with the business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday situations at the service point before and after the CertuAI agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes at the service point with an AI agent?
Who answers first changes: the message stops waiting for you and is answered right away. These are four everyday situations at the service point before and after the CertuAI agent.
TodayThe explanation of the difference between A1 and A3 is repeated all day long
With CertuAIAnswered on its own, with the text you set up
TodayCustomer shows up for validation without the right document and wastes the trip
With CertuAIReceives the full list for the certificate type they asked for beforehand
TodayMessage from someone whose certificate expires tomorrow arrives after hours and waits
With CertuAIThe agent answers right away and books the first free slot
TodayQuote request from an accounting firm with several customers gets lost
With CertuAIBecomes a deal in the CRM, with automatic follow-up
What does a conversation handled by the AI look like?
Example conversation
Service point AI agent
Customer: Do I need to go there or can it be done by video?
AI agent: The validation can be in person or by video conference. I have your free times.
Customer: Which documents are needed for the e-CNPJ of a limited company?
AI agent: The documents for a limited company are what you set up.
Which is the better choice for digital certificate stores: an AI agent or manual customer service?
The agent wins at repetitive tasks, and the person keeps winning at what takes judgment. With manual service, someone at the service point has to stop what they're doing; with the CertuAI agent the answer goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Customer who doesn't know which certificate they need | Someone interrupts a validation to explain over the phone | The agent explains each type with the text you wrote |
| e-CNPJ document list | Sent incomplete, and the customer arrives without the articles of incorporation | Sent in full, by certificate type and by company type |
| Booking the validation | Back-and-forth messages until a time that works is found | The agent offers the times you opened and books it |
| Customer who forgot the certificate password | Sometimes the password ends up going around by message | The agent doesn't ask for a password, explains the rule you set up and calls the attendant |
| Someone who asked for information and didn't book | Only comes back when the certificate has already expired | Becomes a contact in the CRM and gets an automatic follow-up |
What does the WhatsApp agent do for digital certificate stores?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Which certificate fits
e-CPF or e-CNPJ, A1 as a file or A3 on a card, token or cloud, explained by the use the customer describes.
Documents by type
The list you set up for individuals, MEIs (micro-entrepreneurs), limited companies and attorneys-in-fact, sent in full.
Scheduling the validation
In person or by video conference, at the times you left open.
Installation and password questions
The agent explains the path you wrote and passes the customer to the attendant. It never asks for or receives a password.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages at the service point no longer depend on you having your phone in hand.
How does the agent start answering at the service point?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
The agent answers
It answers right away, schedules, follows up, and records each contact in the included CRM. You take over any conversation whenever you want.
How much does an AI agent on WhatsApp for digital certificate stores cost?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create the agent, connect WhatsApp and see it working at the service point.
Create my agentWhat needs to be ready before turning the agent on at the service point?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The document list for each type: individual, MEI, company with one partner, company with several partners and attorney-in-fact
- The explanation of A1 and A3 with your customers' most common uses, such as invoicing (nota fiscal), the accountant's system and signing
- In which cases you do validation by video conference and in which only in person
- Days and times open for validation and how long each appointment takes
- What the customer should do when they forget the password or switch computers, in your words
Whether the agent books the validation directly in the calendar or whether the time only counts after the attendant checks the documents.
The most common mistake: Setting up a single document list and using it for every type. A company's e-CNPJ requires papers that the e-CPF doesn't, and a customer who arrives without them goes home without a certificate.
Frequently asked questions about digital certificates
Does the agent ask for the certificate's password or PIN to help?
Never. It doesn't ask for, receive or store a password, PIN or PUK. If the customer sends one on their own, the agent warns that they shouldn't do that and passes the conversation to the attendant.
Does it check whether the document the customer sent is valid?
No. Checking documents is up to whoever does the validation, at the time of the appointment. The agent only sends the list you set up and books the time.
Does it say whether the customer can renew without a new validation?
It explains the renewal rule you wrote and asks for the type and expiry date of the current certificate. Your attendant confirms whether that case qualifies.
Does it work for accounting firms that send many customers?
Yes. The agent serves each referred customer through their own number and logs them all in the CRM. The firm's request for a special deal goes to you.
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
Says which documents each certificate requires and schedules the validation, in person or by video. Every request becomes a contact and a task in the CRM, without asking for a password.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent