You apparently misunderstood my answer, @maldroubi. It will appear, but only if the Form Default settings include a specific, foreign-currency customer. In turn, that requires that you have both a base currency and that customer’s foreign currency defined. Finally, you must have an exchange rate defined between the two currencies.
That is fine if you always sell to the same foreign-currency customer. Here is what you can do, however, if you have many foreign-currency customers:
- In Form Defaults, select a customer meeting all those requirements
- Check the box to show amount in base currency
- Delete the Customer (and its address), but leave the box checked to show base currency
- Click Update
Now, every time you create a sales invoice for a foreign-currency customer, the box will be checked.
This technique for setting hidden Form Defaults was covered in the March 2019 newsletter.