Automagically expire forwarded leaves after three leave periods

Hello friends,
I have been trying to create a leave type with carry forward selected. I wanted to make sure that any forwarded leaves from the back three leave periods expire and are not to be added to available leaves. I have prepared the leave period with one year (Jan to Dec).

Tried to use Expire Carry Forwarded Leaves (Days) but it is not clear how it works and is not included in the documentation.
Can someone please suggest me a better solution to achieve this?

Since I haven’t received any response on this, I just limited the maximum forwarded leaves so that an employee can not get any excess leaves, which should expire after a certain leave period. :slightly_smiling_face: