To change the base currency

To change the base currency

Dear All,

Any further information about change the base currency?

Our company works all over the world and invoice in different currencies.

I have tried to change it, because I need to make an invoice in USD ($) but, the massage was that for changing it I have to delete the previous transactions that were made with EUROS (€)

How is that possible?

Any suggestion?

Thanks in advance.

Kind Regards,

María José Montoya