When an employee becomes ineligible for Absence Plan set plan balance to zero

Summary:

I have an absence plan that does not pay out final disbursement upon becoming ineligible
for the absence plan. Employees become ineligible through termination or
transferring to a position that is not eligible for this absence plan. We want
the balance to be zero (forfeited?) when this happens.

How do I configure this in the plan? I am not seeing an option for this and when my
employees become ineligible, the balance stays in the inactive plan forever.

Content (please ensure you mask any confidential information):

How do I make this plan set the balance to zero when the person became ineligible for this plan on 1/22/2024?