How to apply actual rent amount as overhead on costed transactions

Summary:

Hi Experts

We have a business requirement of applying actual rent amount as overhead on costed transactions and we are using actual cost method.

Ex:

1. work Orders created for a particular period and all of them are closed/Completed & Costed (Not accounted or Draft Accounted).

2 At the month end, we want to apply the actual rent amount/ electricity as an overhead on the costed Work order transactions, so that it will be included in the FG Item cost and subsequent transactions.

3 But when we try define the overhead at the month end and try to enter start date as month start date, system is not allowing and throwing an error.