There are only a few currency codes listed in the dropdown menu for Transaction Currency when entering an order. The currency needed is not there. How to add it?
Go to Company / Open Setup / Transaction Currencies. Click the drop down arrow next to the Currency Code field and select the currency that you need. The Currency name and ISO-4127 numeric code fields will be automatically filled in.
Select the desired format and click on Save in the upper right corner of the screen. This currency will now be available to be selected as a transaction currency.