Budget Checking Vouchers in Closed Accounting Periods

We have a separate Business Unit/entity that is trying to budget check vouchers that are dated in a closed accounting period but obviously failing because of the closed period.

One of our power functional users told me that our main Business Unit actually allows for vouchers to be budget checked in a closed accounting period and that the numbers will post to the latest open period automatically. Does anyone know where the options/preferences are to set this up? Or if this is even possible?

All I'm finding in the Oracle Support Knowledge Base is to keep the accounting period open.