A user with administrative authorisations can enable the e-invoice.
Go to the Administration tab in the function bar and select Settings > Invoicing. Note: In the case of a multi-company database, you will find invoice management in the respective company profile.
Tick the box for E-invoice.
Select the E-invoice payment account intended for the incoming payments from the list. Note: Select a bank account with IBAN from the list of available payment accounts.