WhatsApp Business API is a programmatic interface that enables medium and large businesses to send WhatsApp messages at scale, automate workflows, and integrate with CRM and eCommerce systems through a Business Solution Provider.
The WhatsApp Business API is Meta's enterprise-grade interface for business messaging on WhatsApp. Unlike the free WhatsApp Business App — which is a standalone mobile application for small businesses managing low message volumes manually — the API is designed for programmatic access. Businesses connect through a Business Solution Provider (BSP) like BSG, which handles the technical infrastructure, message routing, and compliance requirements.
Through the API, companies send template-based notifications (order confirmations, shipping updates, OTP codes), run marketing broadcasts to opted-in audiences, and power two-way customer support conversations. The API supports rich media — images, documents, interactive buttons, and list messages — within a single conversation thread.
Pricing is conversation-based: Meta charges per 24-hour conversation window, categorized as marketing, utility, authentication, or service. Rates vary by country. When integrated through BSG's unified API, WhatsApp works alongside SMS, Viber, and voice with automatic cascade fallback if delivery on one channel fails.
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