Sap business connector converting special character to unicode

Sap business connector is converting special characters in a file to unicode by adding an extra character in the file and the destination system is rejecting it. How do we prevent this? Any ideas are welcome ASAP.

This is probably an encoding issue. In your stringToBytes call (I’m assuming you’re doing something along these lines) you’ll want to specify the appropriate encoding. You might try ISO-8859-1