Invoice total without VAT MUST be equal to the sum of VAT category taxable amounts
/ubl:Invoice((cac:TaxTotal[cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:ID = 'VAT']/cbc:TaxAmount) and (round(xs:decimal(sum(cac:TaxTotal//cac:TaxSubtotal/cbc:TaxableAmount)) *10 * 10) div 100 = (xs:decimal(cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount)))) or not((cac:TaxTotal[cac:TaxSubtotal/cac:TaxCategory/cac:TaxScheme/cbc:ID = 'VAT']))