Sender File Content Coversion - Header and Item

Hi SDNites,

I have a scenario where I have to pick a file which is having the structure as follows,

Header description fields   (In input file it will come - Have total 7 fields))

Header description values (In input file it will come)

Item description fields       (In input file it will come - Have total 8 fields)

Item description values      (Multiple records can come for Item)

In the header and Item I do not have any key fields. I am thinking of designing in the way where I can eliminate the header description by using Document Offset as 1 and Item description I can handle in mapping. But the problem I have encountered is that communication channel is giving me the error xml.keyfieldName: No value found.

Please let me know your thoughts on the above.

Regards,

Abhi