within Zoho Books on the desktop the new expense > Record Mileage is available to enter distance travelled and it calculates the amount based on mileage x 45p per mile. 

In the mobile app, I can create an expense and select the Fuel \ Milage Expense Account but it still prompts me for an amount and not a distance. 

Is there a better way to record mileage on the mobile app. (Android S10)