When a user needs to enter a mileage expense, they would choose the mileage expense category and key in the number of miles to be expensed. The current system functionality doesn't calculate the total at the bottom of the screen until the user clicks the refresh icon.

If users do not select the refresh icon to calculate the total, they will receive an error that keeps them from entering the expense. This is due to the mobile application having no initial knowledge of the tiers (confirmed by the product team engineer). Unfortunately, this has led to some confusion for users as they expect the total to automatically calculate for them.

I am suggesting that the mobile app automatically calculates the total for mileage expenses, rather than relying on the refresh button to be selected.