channels
messenger
logs-and-status-reports-messenger
Receive Messenger Audience Upload Status event
Event is sent when Meta finishes processing a batch of uploaded customer rows for a Custom Audience used with Marketing Messages. For this to work you need to configure subscriptions. Refer to Subscriptions Management for additional info.
postWebhookreceive-messenger-audience-upload-status
Payload
Response
Your server returns this code if it accepts the callback.
Changes
Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.