Initial Configuration 
Purpose
To connect the TREX system to an SAP system, work through the following steps.
Process Flow
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2. Determine the connection data for the SAP system.
3. Configure the RFC connection in the TREX admin tool (stand-alone).
Result
Changes to the SAP system (for example, adding new application servers) can make configuration changes necessary in the TREX system. Therefore, you must monitor the status of the RFC connection during routine operations and correct any configuration errors that occur.
SAP recommends automating the monitoring process and activating the TREX alert server for this purpose. The TREX alert server monitors the status of the RFC connection, among other things, and cleans up most configuration errors automatically.