To add mileage to an expense report line item, follow these steps:

Create an expense report line item, or edit an existing line item. See Adding and Editing Expense Report Line Items for details.
Select Mileage as the expense type in the Type menu. A mileage map appears in the line item.
Enter locations for the From and To fields, such as "Foster City, CA" and "San Francisco, CA".
Click One Way or Round Trip.
Click the Calculate Distance button. The Miles Traveled field is updated and calculates the amount. Expense uses the reimbursable rate set up by your administrator.
Click Save or Save and Add Another.

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