To exempt an Intra-Community Supply of goods, the EU VAT number of the customer is a substantive requirement since Jan 1, 2020. The supplier needs to ensure the EU VAT registration number of the customer is a valid one. This can be checked via the VIES website of the EU. This provides you with a FREE mass validation tool.
If yuo want to get the certification number from the VIES website, you need to put your VAT number in the box Ënter your own VAT number:.