The SAP RFC server receives the IDocs and places these into the JMS topic. One IDoc type results to one topic.
If the embedded JMS broker is used, the topics are not visible. To check what data is stored and to see if messages are received from SAP or consumed by the Job, you need to configure an SAP RFC server that uses an external JMS broker.
Tip: You can use the Apache ActiveMQ as a broker, since it offers a browser-based user interface to see the topics.
The topics are named TALEND.IDOCS.<IDoc Type>. These are set by the consuming Job and the <IDoc Type> that matches the type configured in the tSAPIDocReceiver component.
You can also possibly write SAP trace files. This feature is initially switched off by default, but you can switch it on by setting the configuration file:
#Enable/disable RFC trace (1=on or 0=off) jco.server.trace=1
The following shows you that a .trc file is written to the top-level directory: