Audit Fields
Audit fields are automatically added to the tables of your logging profiles.
By default, these fields are Hidden:
However as part of your Column Options, you can make the Audit fields visible by turning off the Hidden check box. Audit fields are marked as Read-Only (R) and cannot be edited.
If you already use Audit fields, and the names of those fields do not match the Audit fields that are now automatically added to the tables in your profiles, Audit fields will be doubled up.