Message delivery status webhook sent for outbound messages. You will receive either a Message Delivered or Message Failed event for each outbound message, but never both.
Sent when an outbound message is successfully delivered
Content-Type: application/json
MessageFailedCallback
Sent when an outbound message fails to deliver
Content-Type: application/json
MessageSendingCallback
Sent when an outbound message is being sent to the carrier
Content-Type: application/json
About AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
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