I am trying call this standard tcode / program within custom program. If billing is not successful due to any error, I have special handling in my code. But I am not able to to catch this error as I do it on easibi transaction itself. Sy-subrc is always 0 because the tcode call or program call was successful so can't use this either.
Does anyone know how to catch the error specific to this tcode..EASIBI is a individual billing transaction.