Invoices for Transactions Located in the Canary Islands

See item 23–DESGLOSE DEL REGISTRO DE FACTURACIÓN DE ALTA CUANDO SE TRATA DE ENTREGAS DE BIENES O PRESTACIONES DE SERVICIOS LOCALIZADAS EN CANARIAS of the Developer FAQs.

For transactions carried out by a national (state-level) company involving services located in the Canary Islands, in addition to using:
- taxType = 1
- vatKey = 8
- causeNotSubject = 2

you must also include the amounts with the applicable taxes, although SDH does NOT send them to the AEAT.