E-invoice is when your invoice is sent directly to your internet bank.
Not all invoice issuers have e-invoice as a delivery method. You can check on the invoice issuers webpage for information if they offer e-invoice or you can contact their support. You can find their contact details at the bottom of the invoice.
To apply for e-invoice you log in to your internet bank and choose Add recipient.
When you have chosen the recipient and confirmed the agreement you have to fill in your information.