Webhook
An HTTP callback Meta sends to your platform whenever something happens on your WhatsApp number — an inbound message, a delivery status change, or a template approval decision.
One term from the WhatsApp Business Platform glossary. Last updated 2026-07-25.
Webhooks are the reason a WhatsApp platform can show an inbound message instantly rather than polling for it. Meta posts a signed payload to a URL your platform registered, and the platform verifies the signature before trusting the contents.
Different webhook fields carry different events. Message and status events drive the inbox; the template status field carries approval and rejection decisions; account update events carry things like a number being disconnected. A platform that subscribes to messages but not template status will show stale approval state until someone manually syncs.
Related terms
- WhatsApp Cloud API
- Meta's own hosted version of the WhatsApp Business Platform. Meta runs the servers, so a business connects through a provider without hosting any messaging infrastructure itself.
- Delivery status
- The lifecycle state of a sent WhatsApp message — sent, delivered, read or failed — reported back by webhook against the message's unique ID.
- Graph API
- Meta's overarching HTTP API, of which the WhatsApp Cloud API is one part. WhatsApp endpoints are addressed as Graph API paths and versioned on Meta's platform-wide release schedule.
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