Why consent is the whole game
The fastest way to get a number banned is to message people who never asked to hear from you — they report or block you, and WhatsApp reacts to that. Consent is not just polite; it is the single biggest protection for your account and your delivery.
How to collect opt-in
How to handle opt-out
Keep records
Track when and how each contact opted in, and when anyone opts out. It keeps your lists clean, protects you if a recipient complains, and makes your outreach more trusted over time.