Money — multicurrency and credit management

Multicurrency. Off, your company works in its default currency only — the currency its books are kept in. On, documents can be written in other currencies: a customer can be invoiced in dollars, a supplier paid in euros or naira. Each foreign-currency document carries its exchange rate, and the rate is frozen when the document is posted, so history never rewrites itself when rates move. Prices written in your home catalogue convert at the document's rate; a price set directly in the foreign currency always wins. If the rate moves between invoice and payment, the difference is accounted for openly as an exchange gain or loss when the money settles. Exchange rates are refreshed daily and can be reviewed in System Setup. Turn it on the day you sign your first foreign customer or supplier — not before, because every money field becomes currency-aware and forms start asking which currency you mean.
Credit management. On, customers carry credit limits and the application watches exposure: what a customer currently owes on posted invoices plus what they have committed to on approved orders not yet invoiced. A customer who breaches their limit, or whose account is overdue beyond your chosen number of days, can be placed on credit hold — the hold is a hard stop at the point goods would leave (waybill creation), not a warning that can be clicked past. Releasing a hold takes a specific permission and a written note, and the release is recorded. Money taken in advance sits openly as a customer deposit rather than disappearing into the ledger. Turn it on when you sell on credit to customers you do not know personally.