B2B VAT Check services fallback
If VAT validation check is mandatory for B2B customer registration you only have the possibility to check EU VIES database. Due to regular maintenance of each member state, vat service if often not available for a short or longer period of time (france 3 weeks!). I propose for a fall-back logic in Sana that queries a secondary cached database of vat numbers from selected member states such as benelux/dach/france. I checked vatlayer, vatsense and vatapi but none of them offer this services.