It is part of some companies' policies to deduct a user's commuting distance from the mileage distance (first mileage of the day). This can be configured in Rydoo.

After saving your mileage expense as a user, the daily commute distance field will appear and the system will deduct the amount from the expense total.

NOTE: If you are the admin of an account and want to know how to set up the commute deduction, check this article.