Under Settings > Locale > VAT Options you are able to Enable Automatic Customer Group Assignment.
VAT ID Validation applies only to B2B transactions where both the seller and the customer are businesses registered in any of the countries in the European Union.
Issues upon checkout:
If your wholesale customers are having issues upon checkout where discounted prices revert back to the regular price, you will need to disable the Automatic Assignment to Customer Group or make sure that each of your customers have a valid VAT ID.
Updated about 1 month ago