Both the RFC Input and Output adapter operate in generic RFC mode. This mode includes any RFCs available from the SAP system to which you are connecting the adapter.
In this mode, the input adapter invokes any RFCs you specify in the adapter configuration file and obtains output data from the export, changing, and table type RFC parameters. Specify these RFC parameters in the mapping file. The adapter converts this data into ESP data rows which then get published into the ESP streams to which it is connected. The adapter can use values from the mapping file as input to the RFC when making RFC calls. You can also use the mapping file to configure which ESP stream columns the RFC publishes its output data.
The output adapter receives data rows from the ESP stream to which it is connected and maps this data from the stream columns to RFC input parameter during RFC invocation. This is the only mode for the output adapter.