B2BKing also provides a system through which companies can provide their VAT number, which can be required or not required based on the user's selected countries. This field is available in both registration and checkout
VIES Validation is official validation through the European (ec.europa.eu) API, which allows you to know for sure if a company's VAT number is valid.
You can choose not to allow a company to register or checkout unless they have a valid VAT number. Furthermore, you can choose to provide a tax exemption and show prices without taxes for users that have a valid VAT number.
B2BKing also checks if the VAT number is for the country that the user selects and displays an error message if not.
You can create tax exemption rules that require VIES-validation based on country. For example you can do the following:
The VAT field can be present in registration, billing, checkout, or all. See the documentation article on "Registration" for more details
Options include making the field required, or selecting the countries that can see the field.
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