You can use the Expense Report or Travel Expense Report functionality in Envoice to submit your mileage.

To add mileage to an expense report or travel expense report using the Envoice mobile app:

1. Tap the green "+" button to create a new expense report or open an existing report from the "Reports" tab that has not been submitted.
2. Tap the "+ Add expense" icon.
3. Select "Distance."
4. Choose the date of the trip, select the appropriate vehicle, and enter the distance traveled.
5. Optionally, add a comment to provide any notes about the trip.

To add mileage to an expense report or travel expense report using the Envoice web app:

1. Go to the "Reports" section and select "My Reports."
2. Create a new report by clicking "Create new" or open an unsubmitted (Draft) report.
3. In the "Expenses" section of the report, find the row labeled "Mileage" and click the '+' icon.
4. Select the appropriate vehicle, date, and enter the distance traveled.
5. Optionally, add a comment to provide any notes about the trip.