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Meta WhatsApp API is used when your customer has connected a WhatsApp Business account through KarFlows.

Conversational endpoint

Template endpoint

mediaUri is optional for templates with a dynamic media header. The legacy endpoint uses the field name templetName; keep that spelling exactly.

When to use Meta

Use Meta WhatsApp when:
  • The customer has a WhatsApp Business account connected.
  • You need stable API delivery instead of a QR session.
  • You need approved WhatsApp templates.
  • You need official Cloud API behavior.

Unified routing

In Unified Messaging API, include whatsapp_meta in channels.
If Meta is not connected or cannot send, Unified fallback can continue to SMS when enabled.
Meta conversational messages are subject to Meta’s customer-service window. Use an approved template outside that window.
For new text and OTP integrations, prefer Unified Messaging. It uses a server-side bearer token and can continue to SMS when Meta is unavailable.