eSettlement - Self Service Invoice - How to default dept id and other charfield

Hi,

We want to know if any setup need to be done to default the deptid, chartfield1, etc when the supplier enters the invoice through Self Service Invoice. We know that the Account comes from the template. But how other chartifields like Deptid, etc can be defaulted. Is there any additional setup need to be done for the same?

Appreciate any details on this

Thanks, Nav