Changing Regional and Language Options for Your Organization
You can change the format in which Microsoft Dynamics CRM Online displays dates, times, numbers, and currencies. If you have purchased the appropriate subscriptions for Microsoft Dynamics CRM Online, you can also select the language in which Microsoft Dynamics CRM Online displays the user interface and Help.
If you are running Microsoft Dynamics CRM Online for Microsoft Office Outlook, before you can enable additional languages, you must download one or more Language Packs on the same computer.
Setting the Base Language
The base language determines default settings for regional and language options in Microsoft Dynamics CRM Online. After the base language is set, it cannot be changed.
Enabling and Disabling Languages
You can enable or disable available languages in the Settings area. More information: Language Settings Dialog Box
Adding and Removing Currencies
Similar to setting the base language, you select your organization's base currency during the purchasing process for a subscription to Microsoft Dynamics CRM Online. After the base currency is set, it cannot be changed.
However, if your organization uses more than one currency to track financial transactions, you can add more currencies to your implementation of Microsoft Dynamics CRM Online. More information: Language Settings Dialog Box
Deactivating and Activating Currency Records
You cannot delete currency records that are being used by other records, such as opportunities or invoices. However, you can deactivate unnecessary currency records, and they will no longer be available in Microsoft Dynamics CRM Online for future transactions.