WhatsApp bulk messaging: the method that doesn't ban
How to send WhatsApp bulk messages without bans: warm-up, pacing, segmentation, GDPR, and the limit table by number age.
WhatsApp bulk messaging is the highest-ROI marketing strategy of the decade — and also the top cause of banned numbers. Here's how to do it right, based on millions of real messages.
The three non-negotiable rules
- Consent (GDPR/CCPA): only send to people who have engaged with your business and have an opt-out.
- Warm-up: a fresh number needs 7-14 days of real use before any blast.
- Pacing: random intervals (15-60s) between sends. Small batches. Daily limit.
Number age limits table
| Number age | New messages/day | Interval between sends |
|---|---|---|
| 0-7 days | Don't blast | — |
| 7-30 days | up to 50 | 30-60s |
| 30-90 days | up to 200 | 20-45s |
| 90+ days | up to 500 | 15-30s |
Segmentation that works
- Active customers — upsell message
- Inactive — reactivation campaign
- Birthdays — automation by date
- Open cart/proposal — recovery
- Cold leads — content nurturing
What NEVER to do
- ❌ Purchased lists
- ❌ Identical message to 1,000+ people
- ❌ Blasting from a fresh number
- ❌ Multiple sends in the same second
- ❌ Messages without opt-out
Frequently asked questions
Is bulk messaging forbidden?
No. It's allowed for your own list with consent and opt-out. Purchased lists and unsolicited spam are forbidden.
How do I know my number is warmed up?
A number used in real conversations for 14+ days is warm. Zapext shows an internal score per number.
Can I blast from regular WhatsApp Business?
Technically yes, but without pacing control, ban risk is very high.