If you're an expense approver for employees at your company, who needs to approve or reject expense claims made by the employee, you will be able to do this via your mileage account.
You'll receive an email notification asking you to approve expense claims once these have been submitted.
Sign into your mileage account, and from the far left-hand-side, you will have the option to 'Approve expense claims'

Once open, you will see a list of employees who have submitted expenses for you to review

For the employee you want to review, click 'View Summary' next to their line.

You can view all expense periods here - to review outstanding expenses, click 'View' next to the most recent submission which shows the 'Status', 'Open'/'Submitted'.

On the monthly line for the employee, click 'Choose Action', here you can select what status of expense you wish to view.
To view expenses that need approving, either click 'View All Expenses' or 'View Submitted Expenses'.

Once you've received the expense, if you wish to approve/reject, highlight the ticked box on the far right-hand-side for each appropriate expense.
Scroll down, and click either the 'Accept'/'Reject' option. If you reject the expense, please put a reason for the rejection, so that the employee can amend if necessary.
