How do I change the data from a saved invoice?
Once an invoice has been saved any changes made to the invoice data (client data, your company data, bank accounts, address, etc.) *will not be automatically taken into the invoice*.
This ensures the integrity of an invoice no matter what happens later.
If you want to modify the data from an already saved invoice you will need to enter the invoice edit form (the invoice must be reopened if it is no longer draft), and you will have to check on the form the updating box.
If you have changed your bank account and want to add your new account instead of the old one on an already issued invoice, check the box in the lower-left corner.