iExpenses- Expense field mapping to import spreadsheet template

Hi,

We have enabled expense fields  for Airfare under iexpense setup and admin responsibility (Ex: Class of Ticket, From and To Locations are mandatory),

Mapped above enabled expense fields under Air fare expense type under Custom Field 1, Custom Field2, Custom Field 3 under template  for uploading via excel sheet.

When i am Importing test data for Air Fare, its showing an error Please enter a value in the Filed for the above enabled expense fields.

Please suggest am i missing any setups..

Regards,

Raj.