1. Enable multiple currencies for your organization.
2. To designate your corporate currency, from Setup, enter Manage Currencies in the Quick Find box, then select Manage Currencies, and then click Change Corporate.
3. To activate more currencies for your organization, click New in the Active Currencies related list.
4. To use dated exchange rates, enable advanced currency management.
5. Set conversion rates for new currencies. See Edit Conversion Rates. If you have enabled advanced currency management, see Editing Dated Exchange Rates.