We get this message more often than we’d like: “My number got banned yesterday. I only sent an offer to my customers.” Usually the number had been doing well for months. Then one big blast went out, a lot of people hit “Block” or “Report”, and that was it.
The good news is that bans are very avoidable. Businesses send millions of WhatsApp broadcasts every day without trouble. They just follow a few habits that the banned ones skip.
Why numbers get banned
WhatsApp doesn’t ban you for sending a lot of messages. It bans you when people don’t want what you sent. The signals it watches are simple: how many recipients block you, report you as spam, or ignore you completely. There are three common ways businesses end up there:
- Using unofficial bulk sender tools or Chrome extensions that drive WhatsApp Web. These break WhatsApp’s terms, and numbers using them get flagged quickly.
- Messaging numbers that never agreed to hear from you. Bought lists, scraped groups, or “all my phone contacts” are the usual culprits.
- Sending too much, too often, with nothing useful in it. Three offers a week to the same list will eventually wear people out.
1. Use the official WhatsApp Business Platform
If you plan to message more than a handful of people at once, do it through the WhatsApp Business Platform (the API), not the phone app and definitely not a bulk sender. On the API every bulk message goes out as a template that Meta has reviewed. You also get a quality rating and clear messaging limits, so you can see trouble coming instead of finding out when the number stops working.
2. Only message people who opted in
Opt-in just means the person agreed to get WhatsApp messages from you. It doesn’t need to be complicated. A tick box at checkout, a “Get offers on WhatsApp” button on your website, a customer who messaged you first, or someone who scanned your QR code at the shop counter all count. What doesn’t count: a number you found on Justdial or in a group.
Keep a record of where each contact came from. If you ever need to clean up your list, that column tells you who to keep.
3. Watch your quality rating
In WhatsApp Manager every number has a quality rating: green, yellow or red. It moves based on how recent recipients reacted to your messages. Yellow is a warning, not a punishment. When you see it, slow down, send to your most engaged customers only, and fix whatever template caused it.
Ignoring a yellow rating and blasting the whole list again is the fastest route to red, and red is where limits drop and restrictions start.
4. Respect your messaging limit
Meta caps how many unique people you can start conversations with in a rolling 24 hours. New numbers begin low, and the cap goes up on its own as you send consistently with a good quality rating. You can see your current limit in WhatsApp Manager.
Don’t try to get around it with five numbers. Grow into it. A brand that sends steadily for a few weeks usually reaches a comfortable limit without doing anything special.
5. Send fewer, better messages
- Segment. Send the saree sale to people who bought sarees, not to the person who once asked about kids’ wear.
- Personalise. Use the customer’s name and something relevant, like their last order or city.
- Give a reason to open it. “Flat 20% off till Sunday” beats “Big sale!!! Shop now!!!”.
- Keep a rhythm. One or two promotional messages a week is plenty for most stores.
- Make leaving easy. A line like “Reply STOP to unsubscribe” costs nothing and stops people from hitting Report instead.
6. Test on a small batch first
Before sending to 5,000 people, send to 200 of your best customers. Look at replies, blocks and read rates over a couple of hours. If something feels off, you’ve only annoyed 200 people, not your whole list.
What to do if your number is already restricted
Stop all broadcasts straight away. Check WhatsApp Manager to see which template dropped your quality, and pause it. If the account is restricted, you can request a review from the same place. While you wait, keep replying to customers who message you, since those conversations still help rebuild trust.
How Boomly helps
Boomly runs on the official WhatsApp Business Platform. You create templates and send them for Meta’s approval from the dashboard, choose who gets the broadcast, and see delivered, read and failed counts afterwards. Keep the people who replied STOP out of your next campaign, and your quality rating will thank you.
Frequently asked questions
How many messages can I send per day on WhatsApp?
On the API, the limit is the number of unique people you can start conversations with in 24 hours. It starts small for new numbers and rises automatically as your quality stays good. Replies to people who messaged you don’t count towards it.
Is the broadcast list in the WhatsApp Business app safe?
It’s fine for small lists, but only people who saved your number receive the message, and it caps at 256 contacts per list. For anything bigger, use the API.
Can a banned WhatsApp number be recovered?
Sometimes. You can request a review from the app or WhatsApp Manager. Numbers banned for using unofficial bulk tools are much harder to get back, which is the best reason to avoid them in the first place.
