What do we do when we want to disable the ledger of an affiliated company of ERP cloud?

Summary:

What should system administrators do when they need to disable or stop using ledgers/functions of an affiliated company　within ERP cloud? There are affiliated companies that are using ERP Cloud in the customer company. Only one affiliated company wants to stop ERP Cloud whereas other companies want to keep using it. Therefore, we would like to know the necessary steps to disable or stop using the ledger/functions of the company.

It is necessary to invalidate BU and ledger. (I know that BUs and ledgers once created cannot be deleted)

Content (required):

From a system administrator's point of view, could you please tell us what we need to