WhatsApp Business API essentials

Updated June 2026 1 min read

Before you send a single message, it helps to know the few core pieces — what a WABA is, how numbers work, why message categories decide your price, and what templates are.

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The WhatsApp Business API has a handful of core building blocks: a Meta Business Portfolio, a WhatsApp Business Account (WABA), a registered phone number, message categories (marketing, utility, authentication) that set the price, pre-approved templates, and business verification. Understand these and everything else makes sense.

These guides cover the pieces every business owner should understand before going live. Read them in any order — each one is self-contained and uses real examples.

  • Meta Business Portfolio — the container that holds your WhatsApp accounts.
  • Phone numbers for the WhatsApp API — which numbers work, and how messaging limits grow.
  • What is a WABA? — your official WhatsApp Business Account, explained.
  • Marketing, utility and authentication messages — the three categories that decide your cost.
  • Message templates explained — what they are, why Meta approves them, and how to write good ones.
  • Meta business verification — proving your business is real, the easy way.
  • Architecture and security — how your messages are kept private.
Published: June 2026 Last reviewed: June 2026 Reviewed by: ChatMitra WhatsApp API Team

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