Currently I am checking:
if wa_datatab-col1 is initial
or wa_datatab-col4 is initial
message A000(AR) with 'Error in the file in line,' sy-tabix.
So if my col1 and col4 is blank then it is throwing the error. My col1 is material no. Also I have to throw an error if my materianl no in col1 doesnot exist in mara.
Can anyone of you guys please tell me the code for it.