There are still three additional parameters to fill in: the gateway host (usually the same host as the SAP application server), the gateway service (sapgwXX, where XX is the system number), and the program ID from the RFC destination.
Before you execute the extraction please check the setting by clicking the Customizing Check link.
The Test Extraction can be started now. After successful extraction, please also check the protocol of the Open Hub Service monitor. In the preview window, all system notifications are displayed first, followed by the extracted data: