Send a WhatsApp Message to Multiple Contacts: 3 Methods and a Campaign Cost Calculator
Send a WhatsApp message to many customers: broadcast lists vs groups vs the WhatsApp Business API, plus a campaign cost calculator at Meta 2026 rates.
There are 3 ways to send a WhatsApp message to several people: broadcast lists in the WhatsApp Business app (they only reach people who saved your number, and in limited numbers), groups (which expose customers' numbers to each other), and the WhatsApp Business API through a platform like Modeer 360 to send campaigns to thousands of customers safely with approved templates. The last is the only method suited to businesses.
01The three methods compared
| Criterion | Broadcast list | WhatsApp group | WhatsApp Business API |
|---|---|---|---|
| Reaches people who haven't saved your number | No | Yes | Yes |
| Number privacy | Protected | Exposed to everyone | Protected |
| Volume | Limited | Limited | Thousands per day depending on your limit |
| Risk of number ban | Medium | High | Low when you follow the policies |
| Reports and buttons | No | No | Yes |
02Calculate your campaign cost
With the WhatsApp Business API you pay Meta for every marketing message, based on the customer's country. Try your audience size and number of campaigns:
Meta's marketing message prices from 1 October 2026: Saudi Arabia and the UAE $0.0576, and the rest of the Middle East $0.0392. Replies inside the customer service window are charged from the same date at the utility rate, not the marketing rate.
03Steps to send a campaign via the API
- Import a list of customers who agreed to receive your messages.
- Segment them with tags: city, last purchase, interest.
- Write a marketing template and submit it for Meta approval.
- Add quick reply buttons such as "I want the offer" and "Stop".
- Schedule the send for a time that suits your audience.
- Let an AI agent handle the wave of replies instantly.
04Protect your number
Sending to purchased lists or to customers who have not opted in is the fastest way to lower your number's quality rating or get it restricted.
- Send only to people who opted in, and provide a Stop button.
- Start with your most engaged customers.
- Do not send the same offer more than once a week.
- Monitor the quality rating in WhatsApp Manager.
Key takeaways
- Broadcast lists and groups are not suited to businesses.
- The WhatsApp Business API sends to thousands of customers with approved templates.
- Cost = number of messages × Meta's price for the customer's country.
- Consent, a Stop button and quality protect your number.
Frequently asked questions
How many messages can I send per day?
It depends on your number's limit at Meta, which starts at 250 unique customers per day and rises with verification and quality.
Do I pay if the customer doesn't read the message?
Meta charges for delivered template messages, regardless of whether they are read.
Does Modeer 360 add a fee on every message?
No. Meta's fees are paid as they are with no margin, and campaigns fall within your plan's limits.
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- #Bulk WhatsApp messages
- #WhatsApp broadcast
- #WhatsApp campaign cost