How to convert old Romanian currency key ROL to new currency key RON

Hi,

The standard SAP has the Romanian currency key as ROL. But in the year 2005, Romanian government has amended it as RON. But SAP has not made any changes to the currency key for Romanian Leu.(ROL)

We already have posted some invoices using the old currency key ROL.

So now we want to...

1. Change the currency key ROL to RON or create a new currency key RON for Romanian Leu.

2. All the invoices posted in ROL to reflect the new currency key RON.

So, what are the steps to be followed to make these changes in SAP.

Please note that Romanian Leu is NOT a company code currency used by our client.

Your help will be much appreciated.

Thanks

Shino