When you run a session with a BAPI/RFC transformation, the PowerCenter Integration Service makes a BAPI/RFC call to SAP to process the data. When it reaches the end of file, the PowerCenter Integration Service makes the BAPI/RFC call. Depending on the session configuration, the PowerCenter Integration Service can also issue a commit.
The BAPI/RFC call is based on the input data of the Integration ID ports. The PowerCenter Integration Service makes one call to SAP for each Integration ID.
If the BAPI/RFC call fails or if there is a data conversion error, SAP passes the data for the integration ID in comma-separated format to an error output group. If the mapping contains a target instance that is connected to the error output group, the PowerCenter Integration Service writes the data to the target.