WhatsApp Business API guides

What you need to know to run support on WhatsApp with Meta's official API — no jargon, and the rules that actually change your day.

• 01

  The official WhatsApp API (Cloud API): what it is and how it works

  What the WhatsApp Cloud API is, how it differs from the WhatsApp Business app, what a WABA is, how Meta bills messages, and when migrating is worth it.

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• 02

  Embedded Signup: connect your WhatsApp number without leaving the site

  What Meta's embedded signup is, what happens at each step, what coexistence means, and how to fix the most common errors when connecting a number.

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• 03

  The WhatsApp 24-hour window: what it is and how not to lose the conversation

  How the 24-hour customer service window works on the official WhatsApp API, what opens and closes it, what it changes in pricing, and what to do when it expires.

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• 04

  WhatsApp message templates: categories, approval and good practice

  What WhatsApp message templates are, the three categories, why Meta rejects or reclassifies them, and how to write templates that pass on the first try.

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• 05

  How to connect an AI agent to WhatsApp (Claude, ChatGPT and others)

  The path to putting an AI agent on your official business number: MCP, OAuth 2.1, scopes that are roles, and what the agent can and cannot do.

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• 06

  Unofficial WhatsApp APIs over QR code: the real risks

  What an unofficial WhatsApp API is, why it breaks Meta terms, what happens when the number is disabled, and how it compares to the official Cloud API.

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