`BR-66`

An Invoice shall contain maximum one Payment Card account (BG-18).

Official rule text

[BR-66]-An Invoice shall contain maximum one Payment Card account (BG-18).

Where the rule applies

Rule set	Document type	Severity
CIUS-RO (1.0.9) Romanian Ministry of Finance	CIUS-RO (UBL Invoice), CIUS-RO (UBL CreditNote)	fatal

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

Business terms concerned (EN 16931)

BG-18

Technical check

Syntax: UBL · CIUS-RO (1.0.9)
Context: /ubl:Invoice | /cn:CreditNote
Test (must be true): count(cac:PaymentMeans/cac:CardAccount) <= 1

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": "fatal",
  "ruleId": "BR-66",
  "message": "[BR-66]-An Invoice shall contain maximum one Payment Card account (BG-18).",
  "xpath": "/…",
  "source": "schematron:cius-ro@1.0.9",
  "docUrl": "https://einvoice-api.eu/rules/br-66.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.