When a company within EU sell to a customer who does not have a valid VAT registration, the transactions cannot use intracommunity VAT calculation. Domestic VAT must be calculated instead.
In principle a company must validate that the VAT registration is valid every time the company sell to an EU customer to avoid calculating domestic VAT.
Since this is a manual procedure, this is often not done. Instead we need this to be automated,
The European Commission have create a website where it is possible manually to validate if a VAT registration is valid or not.
Wen site is called "VIES VAT number validation"
Idea: a functionality in D365FO that can be set up to on a daily basis to make that check for all VAT registrations in the Tax exempt number table.