In some situations, it is possible for employees to exceed their mobility budget. Read more about when that can happen here. To claim back the exceeded amount, you can add a negative expense in Mbrella.
How to add a negative expense?
Click on Add expense
Enter the amount to be paid back by the employee preceded by a minus sign
Mark the expense as Reimbursable
Select the category 'Cash (pillar 3)'
Click on Save. When exporting this expense to the payroll, the negative amount will be linked to the correct paycode for the net withdrawal salary of the employee.