Official or unofficial WhatsApp: differences, rules and risks for businesses
Sending messages through just any tool seems simpler, but it can cost you your company number. Understand the three ways to use WhatsApp in your business and when each one makes sense.
Published on November 7, 2026 · 6-minute read
The three ways to use WhatsApp in a company
When a company starts serving and selling on WhatsApp, it usually takes one of these paths:
- WhatsApp Business app: the free app for small businesses, used on a phone and on linked devices.
- Unofficial tools: programs that automate regular WhatsApp or WhatsApp Web to send bulk messages and run bots, without Meta's authorization.
- Official API (WhatsApp Business Platform): Meta's official way for companies to send and receive messages at scale, used directly or through a platform.
Quick comparison
| Aspect | Business app | Unofficial | Official API |
|---|---|---|---|
| Allowed by Meta | Yes | No | Yes |
| Sending to many people | Limited and manual | Yes, outside the rules | Yes, with approved templates and limits |
| Several agents on one number | A few devices | Depends on the tool | Yes, through the platform |
| Delivery and read reports | No | Unreliable | Yes |
| Risk of being banned for breaking the rules | Lower, if used as intended | High | Lower, following quality rules |
| Cost | Free | Tool subscription | Platform + messages charged by Meta |
The risk of unofficial tools
Unofficial tools pretend to be a person using WhatsApp: they open WhatsApp Web or the app and send messages automatically. This goes against WhatsApp's terms of service, which prohibit automation and bulk sending without authorization.
In practice, the most common problems are:
- Losing the number: WhatsApp may ban a number that sends messages outside the rules, and the contacts and conversation history go with it.
- Instability: the tool may stop working with each WhatsApp update.
- No data guarantees: the company's conversations go through a system that has no commitment to Meta.
- Company image: messages sent to people who did not opt in lead to reports and wear down the customer relationship.
How the official API works
With the official API, the company uses a number connected to Meta's platform, with a verified name. The main rules are:
- Approved templates: every conversation started by the company begins with a message template approved by Meta. The template may include an image, video, document and buttons.
- Categories: each template has a category, such as Marketing, Utility or Authentication, and the message price depends on it. Meta may change a template's category after approval.
- Customer service window: when the customer sends a message, the company can reply freely for 24 hours. After that, it can only reach the customer again with a template.
- Consent: messages should go only to people who agreed to be contacted by the company.
- Limits and quality: Meta limits how many different people the account can contact per day and monitors message quality. Blocks and reports from customers lower the quality and may limit the account.
That is why even the official API has no unlimited sending and no guaranteed delivery. The difference is that you work within the rules, with reports and without the risk that comes from unauthorized use.
In HiperZap
HiperZap uses Meta's official API. Campaigns use approved templates, created in the dashboard or chosen from ready-made templates, and can go out through HiperZap numbers already connected, according to the contracted setup. People who ask to leave are added to the block list automatically, and the report shows messages sent, delivered, read, replies and failures. Replies can be handled by several agents on the same number.
Which one to choose?
- Small business with few conversations a day: the WhatsApp Business app is usually enough.
- Company that needs to send notices, reminders or campaigns to many customers: the official API is the permitted path.
- Team with several agents on the same number: a platform built on the official API, with multi-agent support.
Unofficial tools are not recommended in any of these cases: what looks like savings may end with a banned number and customers left without answers.
Good practices to keep your quality
- Send only to people who opted in, and record that consent.
- Always offer an easy way to stop receiving messages, such as an opt-out button.
- Prefer useful, personalized messages over generic promotions.
- Start with smaller volumes and increase gradually.
- Reply to the messages your campaigns generate.
Read also
- How to run an official WhatsApp campaign, from template to results
- How to support customers on WhatsApp with several people on one number
- Vehicle registration services: renewal reminders on WhatsApp
- How to reduce appointment no-shows with WhatsApp reminders
- How an auto dialer works and when it is worth using
Official WhatsApp FAQ
Is the official WhatsApp API paid?
Yes. Meta charges for template messages sent by the company, at a price that varies by category. The platform you use to access the API may also have its own cost.
Can I message a purchased list?
No. Messages should go only to people who agreed to be contacted by your company. This respects data protection laws and Meta's rules, and protects the account's quality.
Does the official API guarantee my number will never be blocked?
There is no such guarantee. The official API removes the risk tied to unauthorized use, but Meta keeps evaluating message quality and may limit accounts with many reports or blocks.
Use your company's WhatsApp within the rules
Talk to our team and discover HiperZap.