Import Data Using Complex Data Map

Hi All,

I have created a sample data import application that uses the exisiting data map in the system to import data, but each time i do an import using my app and check in the MSCRM imports list I see that import status is Failed. It doesnt given any other error.

When checked in the trace found the below error:

">None of the columns are mapped, can not continue with this ImportFile id = {A18ADBFA-DE5B-E211-9AA8-000C298D3336}"

However when I use the same data map using the OOB import wizard to import it suceeds.

What could be wrong ?