Document Service add return field

Hello

Lets say I am making a document service that gets a salesId from the remote machine and I want to return all the fields from the salesTable AND an extra field that is calculated based on the data from the SalesTable. How would I go about doing this?

Consider the following:

  1. I do not want to create a temporary table with an added field.
  2. No custom service

http://dynamicsuser.net/forums/t/69168.aspx