A European law defines that unless you can prove that a company has a valid VAT registration in their country, full VAT must be charged om selling products or services between European countries.
It is therefore necessary to validate each company VAT registration number.
Previously it has been necessary to go to a web site: http://ec.europa.eu/taxation_customs/vies/vieshome.do?locale=en
And to verify each customers VAT Registration No.
From Dynamics NAV 2015 and forward, the VAT Registration validation has been moved into the application.
In General Ledger Setup you can enter the VAT Registration Validation URL: http://ec.europa.eu/taxation_customs/vies/services/checkVatService
And after that, it is possible to validate the customer VAR Registration No’s directly from the Customer Card:
Click the button and the Validation page appears:
Click the Verify Registration No. button and the VAT Registration No is verified.
From Dynamics NAV 2016 it has been given a separate setup page by the name of: EU VAT Registration No. Validation Service Setup: