Mapping Help

Hi Experts,

I need ur valuble suggestion to do mappping for the following structures

Source Target
A         A(1...1)
B         ---B(1....unbounded)
C         ------C(1...1)
D         ---------D(1....unounded)
E          ------------E(1....1)

I did the graphical mapping. But here the problem i got was

All the C,D&E fields got mapped with the first occurance of B itself.

So for the second occurance of B it is giving an error message as unable to produce the field /A/B[2]/C.

I am doing an File to IDoc scenario.

Please dont refer any blogs or links. The scenario is able to execute sucessfully except this error.

Please help me out in writing and UDF to do this....

Thanks in Advance....

Surely Points will be awarded for the helpfull answers 😊