According to the documentation, Whaticket allows you to configure a specific endpoint (URL) for each connection, so you can receive notifications from the platform when relevant events occur, such as the arrival of WhatsApp messages.
In the Webhooks section of the configuration panel, you can define events for each connection. When a WhatsApp message arrives, the platform sends a payload with information such as:
messages
sender
chamadoid
ticketdata.status
other fields related to ticket, contact, and context