`SDI-00475`

For 2.1.1.1 <TipoDocumento> … the buyers VAT identifier 1.4.1.1 <IdFiscaleIVA> is required.

Official rule text

SDI 00475: For 2.1.1.1 <TipoDocumento> … the buyers VAT identifier 1.4.1.1 <IdFiscaleIVA> is required.

Where the rule applies

Rule set	Document type	Severity
FatturaPA (XML schema, SDI controls) (1.2.3) Agenzia delle Entrate	FatturaPA 1.2.3 FPR12 (B2B), FatturaPA 1.2.3 FPA12 (public sector)	error

Fatal and error findings make the invoice invalid (valid: false); warnings and information do not.

Technical check

Syntax: FATTURAPA · FatturaPA (XML schema, SDI controls) (1.2.3)
Condition: $tipo = $TD-BUYER-VAT and empty($buyer/IdFiscaleIVA)

Syntax: UBL · FatturaPA (XML schema, SDI controls) (1.2.3)
Condition: $tipo = $TD-BUYER-VAT and empty($buyer/IdFiscaleIVA)

How the API reports this rule

Every finding of POST /v1/validate carries the rule id, severity, message, location (XPath) and rule set, and links this page (docUrl):

{
  "severity": "error",
  "ruleId": "SDI-00475",
  "message": "SDI 00475: For 2.1.1.1 <TipoDocumento> … the buyers VAT identifier 1.4.1.1 <IdFiscaleIVA> is required.",
  "xpath": "/…",
  "source": "schematron:fatturapa@1.2.3",
  "docUrl": "https://einvoice-api.eu/rules/sdi-00475.html"
}

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Rule text and severity are taken unchanged from the official rule set; this page is generated from the API's configuration. Not legal advice.