When you click on End employment you will see a dialog box where you can complete details about the staff member's reasons for leaving the company and the employment end date. You will see that there is a link in this dialog box to Setup your employment end date reminders. If you click on this link it takes you to your Reminders tab in your Company Settings, where you can choose to set email reminders about upcoming employment endings.
Another dialog box will then pop up asking to choose an option that best describes that employee's current working pattern.
A new dialog box will then pop up showing you the amount of holiday allowance owed to the employee. You can change values in the text boxes or alternatively update the total time owed before saving. Then click on End employment.
Please note that these figures are only a recommendation and you are able to edit the figures in the boxes.