Error when uplaoding data from R/3

hi Gurus,

I have got a problem when loading data from r/3 to bw .

i have loaded a init req and i have got more than 1 lac records.

i found out that there are 2000 records with the same error in PSA.

i have used a normal staging scenario ..psa and then to data target.

I know we can do it manually..but anyother way not retrieveing from r/3 again.

how to solve this problem.

and plz let me if i can have only correct records into data target preventing the incorrect ones by any specific setting..

will award points for good answers

thanks ,

charan.