This extension provides the customer the possibility to add its eu-id, if the administrator wants it.

According to entry of the eu-id by the customer, an automatically varification through European Commission's Taxation and Customs Union Directorate-General is following.

Should the verification goes wrong, then the customer is getting an error message with the information to varify the notation of the eu-id.

Should these not being accepted despite the correct notation, then the customer is getting the information to leave the field empty.

In this case the eu-id should be given later by the customer.