What are the differences between TicketBAI and the electronic invoicing system?

The Basque region's system of receipts (invoices) is represented by Ticketbai. Remembering that it was just recently implemented, we can state that the Basque Country is the only territory in Spain that has fiscal autonomy. As soon as the VeriFactu system is formally launched, the remainder of Spain, or the so-called Mainland region, will also be fiscal.