BADI IN MIGO

Dear All

I have used BADI "MB_migo_Badi" for getting an extra subscreen in MIGO transaction for purchase order goods reciept level,

Let me explain my issue with an example :

I was successful in getting the screen and fields.

I have to post GR for 2 items A and B

in customized subscreen I have to Fields offered qty (confirmed qty), confirmed date

while i enter data for item A (line iem 1) the same data is reflecting for item B ,and if I modify the data of item B the same data is reflecting in item A,

Kindly suggest me how can I hold data item wise.

Regards

Chaitanya