How to set an exchange rateكيفية تحديد سعر الصرف

Adding a currency and giving it a rate are two separate jobs on the same screen. Adding the currency takes a moment; the rate is the part with rules - it is dated, it is kept as a history, and one pair of currencies moves together.

1. Open the Currencies screen

From the left menu: General setup → Currencies. The list has two columns, Symbol and Latin description, and a company set up for Lebanon starts with LBP Lebanese Lira and USD U.S Dollars.

2. Select the currency, then click Exchange rates

Click once on the row for the currency you are rating, then press Exchange rates in the toolbar. The rate belongs to the row you selected - open the dialog with the wrong row highlighted and you will file the rate against the wrong currency.

3. Add a rate from a start date

The dialog has its own New / Edit / Delete / Preview toolbar and a grid of four columns: Date, LBP Rate, Foreign Currency V... and Currency. Press New, give the date the rate takes effect from, and type the rate.

A rate is effective from a date, not simply "the rate". Everything posted on or after that date uses it, and everything before it keeps the rate that was in force then.

4. Read the history

Rates are never overwritten - each new one is another row. The Filter options at the top of the dialog let you narrow the grid by Date or by Currency, which is how you read one currency's history on its own.

That is a real audit trail. An invoice from 2016 is still converted at 1,507.500, because that is what the row for 01-01-2016 says - which is exactly why you add a row instead of editing the old one.

Note the two figures side by side: 89,500 is the official rate that was in force, and 90,000 is the rate this business chose to work at from 2026. They are allowed to differ, and the system stores whichever you tell it.

5. The Lebanese pound and the dollar move together

LBP and USD are one linked pair. Set the rate on either and the other follows on its own - you do not enter it twice.

Every other currency behaves differently: it is rated against the Lebanese-pound base, and it stays independent. Change the dollar and the euro does not follow, so if you re-base the dollar you must revisit the others yourself.

6. Deriving a rate you were not given

Rates for other currencies are usually quoted against the dollar, not against the pound, so you do the division yourself. The UAE dirham is pegged at 3.75 AED per USD, and this company works at 90,000 LBP per USD:

90,000 / 3.75 = 24,000

So 1 AED = 24,000 LBP is what goes in the LBP Rate column. The same arithmetic works for any currency you can find a dollar quote for.

When you add the currency itself, the top field is its symbol (AED) and the field below is the description you will recognise it by.

Next: How to add a currency · Currencies & cash for the base rate and the cash structure · Banks for locking an account to one currency.