Starting from the November 2014 payroll, we have a new requirement from Boeing in relation to the vacation forfeiture reflection in the AR4. There are situations when the unused vacation balances lapses either due to over accumulation than the defined limit in Boeing pay practice, or due to being carried forward over the defined limit of number of years. Currently these lapsed vacations are not shown in the AR4 and we just reduce the employee's vacation balance manually under the Vacation Balance (V81) column.
This kind of situations may or may not have arose in your country till now, but whenever such situations arise in future, you need to reflect the number of lapsed vacations under a new column V86 with description as “Vacation Forfeiture” just before the Vacation Balance column.