errorEN16931
BR-66:An Invoice shall contain maximum one Payment Card account (BG-18).
The invoice contains multiple Payment Card accounts (BG-18). Only one card payment method is allowed per invoice.
We can fix this automatically
AUTO-FIXAuto-fix: Keep only the first Payment Card account and remove duplicates. If cards differ significantly, flag for user review instead.
No manual changes needed
Upload and Fix NowWhy This Error Matters
Invoice rejected. Ambiguous payment instructions - which card should be used?
How to Fix It
1
Locate Payment Card sections
2
Count Payment Card accounts
3
Compare card details
4
Keep first or flag for review
5
Remove duplicate sections
6
Validate the result
Technical Details
XPath: /Invoice/cac:PaymentMeans/cac:PaymentCard (BG-18 Payment card information). This business group contains BT-87 (Payment card primary account number) and BT-88 (Payment card holder name). EN16931 BR-66 mandates at most one occurrence per invoice.Common Causes
- Multiple PaymentCard sections added to invoice
- ERP allows multiple card payment options but EN16931 only permits one
- Template duplicated payment card section
- Data migration merged multiple payment records
- Manual XML editing introduced duplicate card details
Frequently Asked Questions
The invoice contains multiple Payment Card accounts (BG-18). Only one card payment method is allowed per invoice.
Remove duplicate Payment Card accounts, keeping only the first one. If cards differ significantly, flag for manual review. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, BR-66 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of BR-66 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.
See Also
Last updated: 16 January 2026
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