fatalEN 16931syntax binding ruleUBL
An address can only have one third line.
A postal address has more than one third address line.
EN 16931 allows three address lines (BT-35, BT-36 and one more). Fold the extra content into an existing line or into the city/post code fields.
UBL — context //cac:PostalAddress | //cac:Address
not(cac:AddressLine) or count(cac:AddressLine) = 1
Nothing is stored, and the whole invoice is checked, not just this rule. A PDF only works if it is Factur-X / ZUGFeRD — a PDF with the invoice XML inside it.