errorEN 16931

BR-DEC-10:The allowed maximum number of decimals for the Sum of allowanced on document...

The sum of document level allowances has too many decimal places. This total must have a maximum of 2 decimal places.

Severity
Fatal
Rule set
EN 16931
Country
All EU
Fix type
AUTO-FIX
Confidence
95%
Category
calculation

Engine Classification

Round sum of document-level allowances to 2 decimal places per EN16931

Confidence: 95% · Applied automatically in pipeline

What is BR-DEC-10?

BR-DEC-10 is a fatal validation rule defined in the EN 16931 specification. It validates the AllowanceTotalAmount element in the UBL invoice XML.

When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.

Target path: //cac:LegalMonetaryTotal/cbc:AllowanceTotalAmount

Why This Error Matters

Invoice will be rejected by validation. Allowance totals must have proper precision for calculation checks.

BR-DEC-10 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.

Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.

Validator Behavior

  • ·Causes invoice rejection
  • ·Error returned: BR-DEC-10
  • ·Specification: EN 16931

How to Fix It

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Before / After

Failing XML
<cac:AllowanceCharge[ChargeIndicator=false]>
  <cbc:Amount>999.99</cbc:Amount>
  <!-- Does not match expected calculation -->
</cac:AllowanceCharge[ChargeIndicator=false]>
Corrected XML
<cac:AllowanceCharge[ChargeIndicator=false]>
  <cbc:Amount>100.00</cbc:Amount>
  <!-- Matches expected calculation -->
</cac:AllowanceCharge[ChargeIndicator=false]>

Technical Reference

XPath//cac:LegalMonetaryTotal/cbc:AllowanceTotalAmount
SpecEN 16931
Operationnormalize
StrategyRound sum of document-level allowances to 2 decimal places per EN16931

Common Causes

  • ·Multiple allowances summed without rounding
  • ·ERP exports full precision sums
  • ·Individual allowances have extra precision
  • ·Calculation chain preserves excess decimals
  • ·Currency formatting not applied to totals

Seeing this in production? The API handles BR-DEC-10 automatically. See the fix response →

See Also

Related Errors

Last updated: 27 February 2026

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Handle BR-DEC-10 Automatically in Your Pipeline

The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.