SE-R-001: For Swedish suppliers, Swedish VAT-numbers must consist of 14 characters

The rule applies to the accounting supplier party where the postal address country code is 'SE' and the VAT party tax scheme has a tax scheme ID 'VAT' and the cbc:CompanyID starts with 'SE'. It requires that, after removing leading and trailing whitespace, the cbc:CompanyID value has exactly 14 characters. A document fails when the Swedish VAT number is not 14 characters long (e.g. missing or extra characters).

In the UBL invoice, set cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme[cac:TaxScheme/cbc:ID = 'VAT']/cbc:CompanyID to the Swedish VAT number with exactly 14 characters (including the 'SE' prefix, as the rule's scope requires). Check the value for leading/trailing spaces; they are ignored for the length check but the trimmed value must be 14 characters.