neep help in analyis batch problem

i run batch on transaction 'me32k' ,

i have to insert 200 lines of agreement ,

i get error after line 90 ,

in line 100 i get error :

cursor field EKPO-BPRME(100) does not exist in the screen .

This is my program line :

concatenate 'EKPO-BPRME' '(' COUNTR1 ')' into txt .

PERFORM BDC_FIELD USING 'BDC_CURSOR'

txt . "' EKPO-BPRME(02)'.

The content of COUNTR1 is 100 .

i tried also to insert 010 and 001 , didn't help .

if i run the batch in mode 'E' , and i push it "press enter" the process

proceed and insert the line .

thanks .