Settings for Customers, Suppliers (Vendors), and Banks
Once customers, suppliers, and other balance sheet categories have been set up using a specific currency, this is fixed and can't be changed later. If you have been recording supplier bills that have been sent in a foreign currency but have been manually converting values to reflect the home currency, a new supplier will need to be created if you wish to start using the Multicurrency feature.
If you choose to Add new while creating a supplier Bill or customer Invoice, the option to choose a Currency will be displayed:
If you're adding customers from within Customer Center, the Currency option can be found within the Payment and billing tab of the customer record. When adding a supplier from within the Supplier Center, the Currency field will be visible at the bottom right of the screen.
Some businesses...