Ten reference guides written to be useful whether or not you buy anything from us. Where Meta's rules changed recently — pricing moved from per-conversation to per-message in July 2025 — these say so, because a lot of what is still online has not caught up.
What the API actually is, who it is for, and how it differs from the app.
The real differences, and the four signals that mean it is time to switch.
The actual steps, the prerequisites, and what usually goes wrong.
Per-message pricing by category, the free window, volume tiers, and hidden margins.
The commercial difference behind "official partner" — and why it decides who owns your number.
What it is, who qualifies, and why most first applications fail.
Categories, approval rules, and the specific mistakes that cause rejection.
What the window is, what it permits, and how to keep it open.
How tiers work, what damages quality, and how to recover a restricted number.
Segmentation, timing, frequency and opt-outs — the four things that decide outcomes.
Valid opt-in, recording consent, and what the DPDP Act expects.
Not sure where to start? The overview walks through what the platform does, and the pricing page explains what you pay us and what you pay Meta.
Connect your number through Meta Embedded Signup, keep ownership of your WhatsApp Business Account, and pay Meta directly for messages — we never add a markup.