If you work with several currencies you can specify these currencies and adapt the settings under Registry - Currency in the left-hand menu.
Enter the currencies and the rates you will be using to create customer or supplier invoices as well as quotes, sales orders, or purchase orders.
Currencies can be chosen in the drop down-menu on the left. Both the buying rate, which appears on customer invoices, quotes and sales orders, and the selling rate, which appears on purchase orders and supplier invoices, can have up to 4 decimal places and can be adjusted at any time. After you adapted the currencies according to your needs, press save.
Currencies can then be preselected on your customers and suppliers in the registry.
You can also choose to automatically update your currencies.