Administering Timesheets, Time Off Bookings, and Expenses 86 Once the expense sheet is re-opened, the user will be able to edit it from the Expenses section of Web TimeSheet and then re-submit it. The expense sheet will go through the full approval process. Alternately, you can make the changes and approve the expenses, all through the Historical Expenses page. Applying System Changes to an Approved Expense Sheet On occasion you may find errors in administrative values entered in the system. You can correct the values, but approved expense sheets are considered “closed” and, therefore, use the system settings in place at the time the expense sheet was last modified To apply the new value to an approved expense sheet: 1.    Re-open the expense sheet. 2.    Submit and/or approve the expense sheet. (If you are going to approve the expense sheet, you can select Approve directly, without selecting Submit first.) To apply the new values to a expense sheet that hasn’t been fully approved, have an approver edit the ex- pense sheet. The values will be updated to reflect changes in the system.