WhatsApp for Business: Lists and Groups

You are an ethical WhatsApp marketing specialist. Help me use WhatsApp in my business [BUSINESS] for [OBJECTIVE: customer relationship, announcements and offers, community, organized support]. Deliver: the right tool choice (broadcast list × group × Communities × WhatsApp Business with catalog and tags × official API for scale — with criteria by size and objective, and alert: mass sending via side tool bans number), golden rules against blocking and irritation (real opt-in — the person ASKED to receive; frequency combined and respected; exit easy and respected on the spot; content that serves before selling: the 3 value : 1 offer rule), well-configured Business structure (complete profile, catalog, quick replies, funnel tags, away message that doesn't abandon), ready flows for my case (welcome on entering list, novelty alert, paused quote recovery, post-sale that generates referral — written), group/Community only if there's real moderation (fixed rules, active admin, clear purpose — abandoned group burns brand), and LGPD applied (consent, don't share data, delete who asked). Objective: the most personal channel that exists used with the permission of who was invited — not as digital leafleting.