This graphic illustrates how network-triggered Transaction Units are logged and handled by a Services Gatekeeper custom module. Your custom module uses its own interface and requests for this communication. The communication happens in this order:
The network first sends a request to the network-facing tier of Services Gatekeeper custom module.
The Services Gatekeeper custom module forwards the request to the application.
The application returns a message to the Services Gatekeeper custom module.
Services Gatekeeper logs the Transaction Unit.
The Services Gatekeeper custom module sends a response message to the network node.