Purchase Order budget carry forward issue

Hello Experts,

We have a scenario, from FY 2021 a purchase order was carried forwarded with an amount of 100,000 $. Now in FY 2022 the PO is deleted, this caused the budget amount to be available openly. We want to prevent this, specifically for carry forwarded Purchase orders, i.e., when a carry forwarded purchase order is deleted it should not reverse consumed budget the make the budget available.

Thank you