HR_ECM_INSERT_INFOTYPE produces runtime error

Question

Hi All,
     Good Afternoon. I have been trying to us the FM HR_ECM_INSERT_INFOTYPE or the FM HR_INFOTYPE_OPERATION
and I am receiving runtime errors such as
CX_HRPA_VIOLATED_ASSERTION or
CX_SY_REF_IS_INITIAL
it seems that the message handler is not functioning as I have expected it to function. I have tried to enqueue the pernr prior to this code, but that doesn't help either.
  CALL FUNCTION 'HR_ECM_READ_INFOTYPE'
    EXPORTING
      pernr           = p_pernr
      infty           = '0002'
      message_handler = message_handler
    IMPORTING
      infotype_tab    = p0002_tab
      is_ok           = is_ok.
  CHECK is_ok EQ true.
  SORT p0002_tab DESCENDING.
  READ TABLE p0002_tab INTO w_p0002 INDEX 1.
  MOVE sy-datum TO w_p0002-aedtm.
  CALL FUNCTION 'HR_ECM_INSERT_INFOTYPE'
    EXPORTING
      pnnnn           = w_p0002
      message_handler = message_handler
    IMPORTING
      is_ok           = is_ok.
  CHECK is_ok EQ true.
Please advise.
Kind Regards,
Daniel A. La Mendola

Answer 1

The FM HR_INFOTYPE_OPERATION  bombs with either
CX_HRPA_INVALID_PARAMETER or
CX_HRPA_VIOLATED_ASSERTION or
CX_SY_REF_IS_INITIAL
I believe that I am not providing some pertinent information
CALL FUNCTION 'HR_INFOTYPE_OPERATION'
   EXPORTING
     infty         = c_infotype_0008
     number        = p0759-pernr
     validityend   = w_rec_it0008-endda
     validitybegin = w_rec_it0008-begda
     record        = w_rec_it0008
     operation     = c_actio_ins
   IMPORTING
     return        = w_return
     key           = w_infty_key.
and that is why it bombs.
Kind Regards,
Daniel A. La Mendola