Dealing with Absences where the accrual balance has reduced and now there insufficient entitlement

Summary

Absences where accrual balance has reduced below zero

Content

Hey all,

Bear with me on this one... I'm looking for some help/advice on how best to deal with this situation.

We have a plan, let's call it Holiday/Vacation. This plan is front loaded with the balance for the entire year, however in reality this is 'earned' throughout the year based on a number of factors (working hours, length of service, position) - we just allow it to be booked at any time. These calculations are done when the accruals are calculated (daily) and the balance could be prorated based on any changes made.