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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Developing
The topics in the Developing section describe tasks performed by an application developer.
Customizing WebSphere Commerce
You can extend the WebSphere Commerce product to fit your business needs. This topic describes the prerequisite skills and required knowledge that you need to customize business logic. After you have the required knowledge, use WebSphere Commerce Developer to take tutorials that guide you step-by-step through various customization scenarios.
Currency
You can display prices in your site in one currency, or you can use multiple currencies by following the instructions for the euro. For a site with multiple stores, you can use different currencies for the stores, or you can assign currencies to the store group. Depending on the type of site that you are creating, you can specify what currencies you want to use and how they are displayed. You can also allow customers to select a shopping currency.
Dual display guidelines
The following points summarize the standards of good practice for dual display advocated by the European Monetary Union.

Dual display guidelines

The following points summarize the standards of good practice for dual display advocated by the European Monetary Union.

The fixed conversion rates must be used when calculating the counter values in dual display.
Rounding to the nearest euro cent must be adhered to as a minimum standard of accuracy for monetary amounts that have been converted from a national currency into the euro.
It should be possible to distinguish between the primary currency and the counter value, which is displayed for information purposes only.
Prices should not have an excessive number of digits. Dual display of prices on individual products can be limited to the final price that consumers have to pay. Dual display on receipts from retail outlets and on other financial statements can be limited to the total amount.
Merchants should indicate clearly whether they are prepared to accept payment in the euro during the transitional period.