@LynneSmallto make sure I'm understanding you correctly, when you say this person is traveling throughout the month, you mean by driving, correct?

你如何进入里程是com吗pany. Do they allow one single mileage entry on an expense report that includes the entire month's mileage or do they want each day listed as its own entry. In my experience, most companies prefer listing each day's mileage as separate entries. This might be a little more work up front, but it is easier to review for approvers. Also, no one would probably complain by listing them separately. You will need to reach out to your site administrator or you Finance department to see what the preference is.