Data Source for BSEG Data base table

Hi Every one,

I need to create a data source for the data base table BSEG (Function Module Extraction).

I have followed below steps.

I have created extarct structure which contains all the fields of BSEG Data base table.If I save the data source I am getting error.

If I remove all the currecy fields from extract structure, I am able to activate the data sorce.

So Could you please explain me how to extract currency fields.