reuse an invoice #

Romania entered an A/R invoice in the wrong currency (RON), but they actually needed the invoice in EUR. Unfortunately, they can’t just void the transaction and re-enter because JDE will not let them use the same doc# on the re-entry, and the doc# MUST be the 20140100 on this invoice, per their gov’t regulations.  Is there a setting that allows a duplicate use of the invoice number once we void