Specifies the URL of the EU web service that is used by default to verify VAT registration numbers.

Warning
This web service uses the http protocol, which means that data transferred through the service is not encrypted.

Note
You may experience downtime for this service for which Microsoft is not responsible, as the service is part of a broad EU network of national VAT registers.

You can use an EU web service to verify that VAT registration numbers that you enter on customer, vendor, or contact cards are valid. When you modify the VAT Registration No. field on a card where the value in the Country/Region Code field is an EU country/region, then the new VAT registration number and your user ID are logged in the VAT Registration Log window. To verify a VAT registration number, you can choose the DrillDown button next to the VAT Registration No. field to open the VAT Registration Log window and then start the verification function. For more information, see How to: Verify VAT Registration Numbers.

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