VAT number checking validates your customers VAT number through VIES (VAT Information Exchange System) and gives you possibility to provide B2B transactions in your store.
This feature is automatically activated for EU customers during checkout process with a "Field" to collect a customers EU VAT if available.
The system automatically detect the user IP Address(EU) and the VAT Number field will be visible at checkout. The entered VAT numbers will then be validated using European VAT Number Validation API. If the VAT Number is valid, businesses located outside of your base country will not be charged for VAT.