If you are connected to an accounting system you must request this setting via: support@godo.is if it's not already set up for you.

Further details:

Customers can be connected to Rates in Godo Property. These rates can be in ISK/EUR for accounting. 

Here is how you register a customer in a certain currency.

Find the "Currency" line within "Customer" under Settings -> Guest Management

You can select "ISK" or "EUR" within the red box as shown below. 

Note: "Code" within the blue window is the connection between "Customers" and "Rates" within the system. See below: