The web shop system can only accept valid VAT numbers for cross border transactions within the EU.

Here you can check if your VAT number is valid for cross border transactions: https://ec.europa.eu/taxation_customs/vies/#/vat-validation

When you enter your address during the checkout process in our web shop, including the area and post code, the system knows you do not have to pay VAT, so VAT will not be applied to your order.

Note: The Canary Islands are part of the EU for customs purposes, but they are outside of Spain and the EU for VAT purposes.

This means that a VAT number valid on the Canary Islands cannot be entered in the shopping basket.