If a Service Administrator has turned on auditing for Data (see Administering Planning for Oracle Planning and Budgeting Cloud Service), you can view the data history of any numeric, date, or text cell to which you have at least Read access.
To view a cell's data history:
A read-only screen displays which users changed the cell's value, when, its previous value, and new value. You can sort the list by ascending or descending order.
Note:
Planning does not display data values that are changed by executing business rules; instead, the executed business rule name is displayed.