Many businesses have lost their WhatsApp number after sending messages to large lists. It happens when messages look like spam to WhatsApp and recipients. Here is how to reach many customers safely.
Why numbers get banned
- Messaging people who never gave permission.
- Many recipients blocking or reporting you.
- Using unofficial bulk-sending software or modified apps.
- Sending large volumes suddenly from a new number.
The safe way: the official API
For messaging many customers, use the WhatsApp Business Platform (API) through an approved provider. It uses approved message templates and is designed for business messaging at scale. Read app vs API.
Rules to follow
- Get opt-in: only message people who agreed to hear from you on WhatsApp.
- Be relevant: send useful offers, reminders and updates, segmented by interest.
- Do not overdo it: two to four marketing messages a month is plenty for most businesses.
- Make opting out easy: include “Reply STOP to stop these messages”.
- Keep lists clean: remove invalid numbers with our phone number list cleaner.
Using the free app
The WhatsApp Business app’s broadcast feature only reaches people who have saved your number. Keep broadcasts small, relevant and occasional.
How to grow an opted-in list
QR codes at the counter, a WhatsApp button on your website and a checkbox at checkout. Read how to grow your broadcast list.
Write compliant messages with our broadcast message writer.
Want the full picture? This article is part of WhatsApp marketing: the complete guide, our in-depth guide with everything in one place.
