Find errored out Records from COPA

Hi All,

I have a report program which uploads certain data in a certain format onto the application server which will be used by the T Code KEFC (The data format is as per what KEFC requires). The report then calls the T Code KEFC, I am doing this using the Submit command. My problem is, I need to capture any error-ed out records (That KEFC may return) and create an error log file which contains the whole record that errored out. How do I achieve this? The report will be run as a batch job, how do I identify which was the record that KEFC could not process ? Any inputs?