Debugging Techinques for BDC or Bapi

Hi Experts ,

                   I am debugging an Bapi Program with plenty of records ,my internal table has 250 records, i would like to debug 200th record , as i

                   know that error would be in that record , is there any direct method to jump to 200 th record,how can it be achieved?

                   Please suggest any other debugging techinques, points will be rewarded.

                  Thanks

                  Prakash .J