When a currency is added to an organization's list of supported currencies, it cannot be deleted and once enabled, advanced currency management cannot be disabled are two considerations that AW Computing should be aware of prior to implementing this change to the existing system. Adding a currency to an organization's list of supported currencies is an irreversible action that allows users to enter and view amounts in that currency for standard and custom objects that have currency fields. Enabling advanced currency management is also an irreversible action that allows administrators to define dated exchange rates for opportunities and opportunity products based on close dates or product dates instead of using static conversion rates