Callback URL
The specific web address where WhatsApp sends webhook notifications for incoming messages and status updates.
How it works
A callback URL is the HTTPS endpoint you register with the WhatsApp Business API to receive webhook events. This URL must be publicly accessible, use HTTPS with a valid SSL certificate, and be capable of handling the verification handshake that WhatsApp performs during setup. When configuring your callback URL in the Meta Developer Portal, you also specify a verify token, a secret string that WhatsApp includes in the verification request to prove authenticity. In production, your callback URL typically points to a load-balanced server or serverless function that can process high volumes of incoming events without timing out.
Related terms
Webhook
A server endpoint that receives real-time notifications from WhatsApp whenever a message is received, delivered, or read.
Message Status Callback
A webhook notification sent by WhatsApp when a message's delivery status changes, from sent to delivered to read.
WhatsApp Business API
A programmatic interface that lets medium and large businesses send and receive WhatsApp messages at scale through automated systems.
Learn more in our docs
Explore guides, tutorials, and API references for building on the WhatsApp Business platform with SuperWaba.