You will also have to perform a number of setup tasks described in this section. For example, you need to set up special accounts to track the transactions you make in each currency. If, for instance, you plan to make sales in euros, you will need to create a separate receivables account for your sales to customers in Europe. Every foreign-currency account you create requires a companion account, known as an exchange account, to track changes in the value of the transactions assigned to the account.