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WhatsApp essentials
The rules Meta sets, not the buttons we built: the 24-hour customer service window, message templates and approval, coexistence with the WhatsApp Business app, quality ratings and opt-in. These decide what any platform on WhatsApp can and cannot do for you.
Articles in this topic
- A WhatsApp QR code you can change after it is printedHow a live QR code works, why pointing one straight at a wa.me link is a risk, and how to put several numbers behind one printed code so a ban or a lost phone costs you nothing.
- Business verification and the green tickThe two different verifications Meta runs — verifying your business, and the official business account badge — what each one unlocks, and what you need to pass.
- How WhatsApp charges for messagesThe per-message pricing model, which messages are free, and how Meta's charges relate to what a platform charges you.
- Opt-in and opt-out on WhatsAppWhat counts as permission to message someone on WhatsApp, how to collect it so it holds up, and why honouring opt-out is a deliverability question and not only a legal one.
- Quality rating and messaging limitsHow Meta scores a WhatsApp number, what a drop to yellow or red actually costs you, and the messaging limit tiers a number moves between.
- The WhatsApp 24-hour customer service windowWhat the 24-hour window is, exactly when it opens and closes, what you can send inside it, and how to reach a customer once it has expired.
- WhatsApp Business App coexistence, explained properlyHow one number can run in the WhatsApp Business app and on the Cloud API at the same time — what gets imported, the one-shot 24-hour history window, and the mistakes that cannot be undone.
- WhatsApp Business app vs WhatsApp Business Platform (API)The two products Meta calls "WhatsApp Business", what each one can and cannot do, and how to tell which one your business actually needs.
- WhatsApp message templates — categories, variables and approvalWhat a message template is, the three categories Meta uses, how variables and samples work, why templates get rejected, and when you need one.
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