Problem when changing currency unit for a client

I recently changed the currency unit I invoice for a specific client. But as a result, it seems that IJ applies that change to all previous invoices. Is there a way to prevent that from happening?

Hi There,

This is expected functionality.

We only support a single currency per client. And the currency is always linked to the client itself.

If you need to bill clients across currencies, we would suggest creating a separate client and suffix the client name with the currency.