Add or Refresh Columns Displayed in a Target Object
You may need to load data for a column that exists in a target object in your target application, but isn't already populated by your current tasks and data flows.
In your project you have identified the task and data flow that you need to modify.
The target object already contains the additional column needed to meet your requirements.
If your target is a file format, from the Datastores tab, add additional columns to the file format.
To refresh columns displayed in an existing target object in a data flow: