Sending WhatsApp messages to 10,000 people is entirely possible through the official WhatsApp Business API — but doing it wrong is the fastest way to get your number permanently banned. Here's the safe way to do it.
The Two Ways (Only One Is Safe)
| Method | Tool | Safe? | Scale |
|---|---|---|---|
| Official API | WhatsApp Business Platform via a BSP | ✓ Yes | Unlimited |
| Unofficial tools (WABulker, GB WhatsApp) | Unofficial automation | ✗ No | Gets banned within days |
Requirements Before You Send
- WhatsApp Business API access — through a platform like Tenreply. Not the free Business App (caps at 256 contacts, manual only).
- Approved message template — every broadcast uses a Meta-approved template. Submit → Meta approves (24–48 hours).
- Opted-in contact list — you can only message people who gave explicit permission. Cold list = ban risk.
Number Warm-Up Process
- Day 1–7: Max 1,000 messages/day
- Day 8–30: Up to 10,000/day (quality rating permitting)
- After 30 days: 100,000+/day with green quality rating
Protecting Your Quality Rating
- Only message opted-in contacts
- Include a clear opt-out option ("Reply STOP to unsubscribe")
- Segment your list — send relevant offers to relevant segments
- Personalise with variables — generic blasts have higher block rates
What Does It Actually Cost?
For 10,000 marketing messages to Indian numbers: Meta fee ~₹7,800 + platform fee ~₹1,000–₹2,000 = approximately ₹8,800–₹9,800 total.
Use the Broadcast Cost Estimator for your exact numbers. Validate your template before submission with the free Template Previewer.