Hi Vasu,
The field in your BW is 17,2 which I am assuming is a decimal value of 17 digits long with 2 digits after the decimal point. Your property of 40 characters should have plenty of room to fit any value so something else is wrong. Can you please validate the transformation and conversion files with this data?
I highly recommend validating the transformation and conversion files with the new external data. In my experience most of the time when there is a problem in mapping the external data the transformation and/or conversion files do not validate successfully and they generate useful diagnostics.
Regards,
Leila Lappin
