BR-51 - Never include a full card number
In line with card-payment security standards, an invoice must never include a full card primary account number (PAN) (BT-87).
BR-51 - Never include a full card number
In line with card-payment security standards, an invoice must never include a full card primary account number (PAN) (BT-87).
What this rule checks
In line with card-payment security standards, an invoice must never include a full card primary account number (PAN) (BT-87).
How to fix it
Mask the card number, keeping at most the last digits (e.g. ************1234).
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
BR-CO-25Amount due needs a due date or payment termsBR-49Payment instruction needs a means type codeBR-50Credit transfer needs an account identifierBR-61Credit-transfer means needs an account identifierPEPPOL-EN16931-R061A direct debit requires a mandate referenceBR-DE-1Mandatory: payment instructions (BG-16)
Source: CEN EN 16931 Schematron · Last verified: 2026-07-10
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