What is the WhatsApp Business API?
The programmatic interface, delivered primarily through Meta's Cloud API, for businesses and solution providers to send and receive WhatsApp messages at scale.
Why is this important?
The API makes WhatsApp available to CRMs, support platforms, agents, workflow engines, and governed backend systems.
How it works
A business onboards a WABA and phone number, configures webhooks and permissions, sends through Graph API endpoints, and receives status events.
Technical example
An order system receives a message webhook, resolves the customer, sends a status response, records receipts, and escalates exceptions.
Implementation notes
Verify signatures, use idempotency, store identifiers, respect templates and service windows, secure tokens, and design for retries and rate limits.
Sources
https://developers.facebook.com/docs/whatsapp/cloud-apihttps://developers.facebook.com/docs/whatsapp/embedded-signup/
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