Data Type Text (text field: A type of field whose content is text. Examples include the Task Name and Email Address fields. This field can contain up to 255 characters.)
Entry Type Calculated (calculated field: A field in which the value is determined by Project based on information in other fields. Project may recalculate the value automatically or when you specify, depending on your choice of calculation settings.)
Description These fields are used by the Import Resources Wizard and Import Project Wizard to show errors upon importing resource and task information respectively into Microsoft Project Server. The values of these fields can only be seen by using the wizards. It is not recommended to add these fields to any other Microsoft Project views.