Hi Greg,
Thank you for your quick reply.
I created source structure as below, not sure whether its correct to implement mapping logic as said by you
DT_FTOIDOC
Record 1.1
Header 0..99999
Field1
Field2 (key)
Field3
ITEM 0..99999
Field1
Field2 (key)
Field3
Please help me to define source structure too.
Thanks,
Aish