# Loki Checkout Eu Vat

**Within the LokiCheckout, we simply make use of the Magento core capabiliteit to validate VAT numbers. And it is made visually appealing if validation errors occur.**

Whenever a customer enters a VAT number, the LokiCheckout is able to validate this number properly. First of all, a field prefix is populated with the current country value that the customer supplied (including a remapping when the VAT country is not equal to the Magento country ID, like with GR and EL). Next, the customer is able to enter a VAT ID that starts with that prefix. If the VAT number does not validate, it is not added to the quote.

## Integration with Geissweb
The [EU VAT Enhanced module](https://www.geissweb.de/magento-extensions/eu-vat-enhanced-for-magento-2.html) of Geissweb is a popular solution to validate EU VAT numbers. While this third party module is not required for the validation of modules itself, it is handy to have anyway.

[See LokiCheckout_GeisswebEuvat](/checkout/modules/LokiCheckout_GeisswebEuvat)