valid registered, and the sale can be zero-rated if the other conditions hold invalid the service answered and the number is not registered badFormat rejected locally, nothing was asked formatOk structure is fine, but the tenant does not run full lookups unavailable the EU service or that member state could not be reached notChecked validation is switched off for this tenant
true, false, or null for unknown. Null is NOT the same as false, and must not be shown as invalid.
Result of a VAT check.
vatValidationon the cart carries the same fields plus the consultation number, which is the merchant's audit evidence and is not returned here.