WhatsApp lets businesses send marketing broadcasts, but only to people who agreed to hear from you, and only within limits Meta enforces. Three layers of rules apply at once: WhatsApp's own Business Messaging Policy and opt-in requirements, technical limits on how many people and how many marketing messages you can send, and the marketing and privacy laws of the countries where your customers live.
In practice that means four habits: collect a clear opt-in that names your business, keep promotions out of service messages, make stopping easy and honor it immediately, and watch your quality rating. This guide covers each rule with Meta's current documentation, the limits and prices that apply from October 2026, and a message template you can adapt.
Three ways to send a broadcast on WhatsApp
| Method | How it works | Key rules |
|---|---|---|
| Broadcast lists in the WhatsApp Business app | One message sent to many contacts, each receiving it as a private chat | Only people who saved your number receive it, and each list holds up to 256 contacts according to WhatsApp's help center. Free, but consent rules still apply |
| Business broadcasts in the app | Scheduled sends with buttons and read and reply metrics | Meta says they can reach customers "even if they haven't saved your contact number". Availability and any charges vary by country, so check the app |
| WhatsApp Business Platform (API) | Approved message templates sent through a provider | Meta's opt-in rules, daily messaging limits, per-message pricing and template review |
Groups are not a broadcast tool. Adding customers to a group without asking exposes their numbers to each other, invites reports, and if you post offers there, it's a consent problem. WhatsApp has also been testing monthly caps on broadcasts sent from the apps, so expect the free app route to stay limited.
Unofficial "blaster" tools that push thousands of messages from an ordinary number break WhatsApp's terms and usually end with the number banned. They don't change your obligations under the law either.
Opt-in: what Meta requires
The policy is short: you may contact people only if they gave you their phone number and you received their opt-in permission to receive messages, and you must respect every request "either on or off WhatsApp" to block or opt out.
Meta's opt-in guidance adds detail for the API:
- The opt-in must clearly state that the person agrees to receive messages from your business, and must name your business.
- You can collect it on your website, by SMS, on the phone, in person or on paper. It doesn't have to mention WhatsApp by name, though saying so avoids surprises.
- Meta recommends separate opt-ins for different kinds of messages (say, order updates and offers) and clear instructions for opting out of each.
Good wording names the sender, the content and the channel (the studio here is made up): "Yes, send me offers and class updates from Riverside Pilates on WhatsApp. I can reply STOP at any time."
What doesn't count: a pre-ticked box, a line buried in your terms, a number someone passed you, a number copied from a group, or "we'll assume you're in unless you reply".
What to keep as proof
| Where consent came from | What to record |
|---|---|
| Website or landing page form | Date and time, the checkbox wording that day, the number, the source |
| A WhatsApp message from the customer | The message itself, with its date |
| A Facebook or Instagram lead form | The consent question's wording and the lead export with dates |
| In store or at the front desk | A signed sheet, or a message the customer sends from their own phone on the spot |
| A phone call | A recording or note where the consent is clear |
Marketing, utility or service: why the category matters
On the API, every message you start is a template in one of three categories, and replies inside a conversation are service messages. Meta's categorization rules:
- Marketing: offers, launches, win-backs, cart reminders with a discount, newsletters. Also the default for anything mixed or unclear.
- Utility: a non-promotional follow-up to something the customer did or asked for: an order confirmation, a delivery update, an appointment reminder, a payment reminder.
- Authentication: one-time passcodes only.
- Service: free-form replies within 24 hours of the customer's last message.
| Message | Likely category | Why |
|---|---|---|
| "Your appointment is tomorrow at 10:00. Reply 1 to cancel." | Utility | About an action the customer took, no offer |
| "Your order has shipped. Tracking: 123." | Utility | Update on an existing purchase |
| "Your appointment is tomorrow, and facials are 20% off this week." | Marketing | An offer was added |
| "Happy holidays from the studio" with a link to a sale | Marketing | The link encourages a purchase |
Meta enforces this. A utility template that WhatsApp judges to be marketing is approved as marketing, and an approved utility template that turns out to contain promotional content can be switched to marketing, usually with a day's notice. Repeated misuse can lead to rate limits on utility messages and restrictions on creating templates. The simple test: would you send this message without the offer? If the offer is the reason you're sending it, it's marketing.
The limits Meta enforces
Daily messaging limits. On the platform, a new business portfolio can message 250 unique customers in a rolling 24 hours outside open service windows. The limit is shared by all numbers in the portfolio. Verifying your business, or sending 2,000 high-quality messages to unique customers within 30 days, lets Meta review your quality and, if it approves, raise the limit to 2,000. After that, if quality stays high and you use at least half your limit over 7 days, it rises automatically to 10,000, 100,000 and unlimited.
Per-user marketing limits. WhatsApp may cap how many marketing messages a person receives from all businesses over a period, based largely on how often that person reads them. A blocked send fails with error 131049; Meta says to wait at least 24 hours before trying that person again.
No marketing templates to U.S. numbers. Meta's documentation states that WhatsApp does not currently deliver marketing template messages to users with U.S. phone numbers. Utility, authentication and service messages still go through, so U.S. businesses mostly use WhatsApp for conversations, reminders and click-to-WhatsApp ads.
Customers can stop you. In WhatsApp, people can mark your offers as not interesting or stop marketing messages from your business altogether. Sends to someone who stopped them fail with code 131050 and aren't delivered.
Quality and template pausing. Blocks and reports lower your quality rating. A template that falls to low quality is paused for 3 hours the first time, 6 hours the second, and disabled the third. Repeated low-quality templates can eventually affect the number itself.
What broadcasts cost on the API
Meta charges per delivered message, by the recipient's country. Rates from Meta's rate card effective October 1, 2026, in USD before tax and provider fees:
| Market | Marketing | Utility | Service (after 1,000 free a month) |
|---|---|---|---|
| United Kingdom | $0.0635 | $0.022 | $0.022 |
| North America (U.S., Canada) | $0.025 | $0.0034 | $0.0034 |
| India | $0.0118 | $0.0014 | $0.0014 |
| Brazil | $0.0625 | $0.0068 | $0.0068 |
| Mexico | $0.0397 | $0.0085 | $0.0085 |
| South Africa | $0.0379 | $0.0095 | $0.0095 |
| United Arab Emirates | $0.0576 | $0.0157 | $0.0157 |
| Germany | $0.1365 | $0.055 | $0.055 |
Look up other countries on Meta's pricing page. Two details matter for budgeting. Each business number gets 1,000 free service messages a month, and from October 1, 2026 Meta charges for the rest, along with utility messages sent inside an open service window. And when a customer messages you from a click-to-WhatsApp ad, a free entry point window of up to 7 days opens in which your messages to them aren't charged. Example: one offer a month to 2,000 opted-in customers in the UK costs about $127 in Meta fees, plus your provider's subscription. More on costs and setup is in WhatsApp marketing for small business.
How a good marketing message looks
Meta doesn't dictate wording beyond its policy, but a message that names the sender, gives one clear reason to reply and shows how to stop gets fewer blocks, which protects your quality rating:
Riverside Pilates: trial classes are $19 for anyone who books by Thursday. Reply "I'm in" and we'll send you this week's times. Not interested in offers? Tap "Stop promotions" or reply STOP.
On the API, add a quick-reply button such as "Stop promotions" to marketing templates, and connect it to your list so the person is actually removed.
Frequency and timing aren't set by Meta, but read rates drive per-user limits and quality. For most small businesses, one marketing message a week at most, sent at a sensible local hour and with a real reason, works better than daily blasts.
Laws that may apply on top of Meta's rules
WhatsApp's policy also requires you to meet your legal obligations, and those depend on where your customers are. Laws that may apply to marketing messages or to the customer data behind them include:
- United States: the Telephone Consumer Protection Act (TCPA) and state laws on marketing calls and texts.
- United Kingdom: the Privacy and Electronic Communications Regulations (PECR) and UK GDPR. The ICO's electronic mail marketing guidance covers texts and direct messages as well as email.
- European Union: the GDPR and national rules implementing the ePrivacy Directive.
- Elsewhere: for example India's Digital Personal Data Protection Act and Brazil's LGPD.
They differ on what counts as consent, whether existing customers can be messaged under softer rules, and what records you need to keep. If you message customers in several countries, follow the strictest rule that applies to each one.
If a customer complains
- Stop all messages to that number at once and remove it from every list, including in your provider's system.
- Find your record of how and when they opted in.
- Reply politely and confirm they won't hear from you again.
- If the complaint comes from a lawyer or a regulator, get legal advice before responding.
- Fix the process that let it happen: the form wording, the import, the missing opt-out button.
Checklist before every broadcast
- Every recipient opted in to messages from your business, and you can show when and how.
- The message names your business in the first line.
- Marketing goes in marketing templates; reminders and updates stay free of offers.
- There's an easy way to stop, and stop requests from any channel are honored.
- You aren't sending marketing templates to U.S. numbers.
- Someone is available to answer replies, because good broadcasts start conversations.
If replies pile up, an automated assistant can help; WhatsApp AI agents for small business compares the options. PowerAds.ai, an AI marketing agent that works inside WhatsApp, can draft a broadcast with clear sender details and an opt-out line, or the consent wording for your sign-up form. Who you send to, and keeping the consent records, stays with you. If you're working out where WhatsApp fits in your wider plan, see how to market a small business.
This is general information, not legal advice. It describes Meta's policies and documentation as of November 2026. Rules differ by country and change often; for a specific situation, check with a qualified lawyer.
