***** Usage ***** Sending Invoices to SII ======================= In order to let Tryton know that the invoices should be sent to SII you should activate the ``Send invoices to SII`` flag on the `Fiscalyear ` form. When this flag is activated Tryton creates a `SII Record ` for each invoice. This record are sent automatically to the tax authority by a *Scheduled Task*. Tryton retries until the invoice is accepted by the tax authority.