How changed invoice profile settings are used

When you change the settings of an invoice profile, the changed settings are used in jobs that are started after you save the invoice profile. Any jobs that are running or waiting are not affected.

General  Used when you save the invoice profile.
Identification   

Used only for invoices that belong to new invoice definitions. Invoices that belong to existing invoice definitions are not affected.

Currency 
Supplier
Learning invoices 

 Used for all invoices.
Character set
Events