Destination fields are the individual fields in the integration destination. You access them using the Destination Fields object. See DestinationFields object for more information. Integration Manager uses the field rule selections to set the value of all destination fields just prior to executing the Before Document Commit script. If your script refers to a single destination field, consider attaching it directly to that field and using the CurrentField object. If your script refers to setting other destination fields, use the Before Document Commit script.