Suppose if we do BDC for tcode ca02, in one of the screens i find a table control containing some data. here i want to insert data into that table control. the data (value) that i want to insert into table control from internal table needs to be checked . if it contains value already, then give an error message. how to do?
next question is how can we get the records from the table control in the screen into internal table while doing BDC?