fcc to proxy interface

Hi,

Scenario FCC to Proxy asynchronous:

My Fcc is having the fields(~ seperated .csv file)

TTHY~31396567~463499~~Pegasystems Software Limited Sp z.o.o~PORTMAN TRAVEL (IRELAND) LTD~08-OCT-17~24067499~Radoslaw~Nowak~RFPPEGAC01~CGT~~~

Total 15 fields

My FCC Configuration

Scenario is successful but getting , for the last field but it should be empty.

Please tell the settings required in FCC content conversion.