How do I fix PEPPOL-EN16931-R055?

Invoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (PEPPOL-EN16931-R055). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.

Is PEPPOL-EN16931-R055 a critical error?

Yes, PEPPOL-EN16931-R055 is a critical error that will cause invoice rejection. It must be fixed before submission.

Can PEPPOL-EN16931-R055 be automatically fixed?

Many instances of PEPPOL-EN16931-R055 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.

errorPeppol BIS 3.0

`PEPPOL-EN16931-R055`:Invoice total VAT amount and Invoice total VAT amount in accounting currency...

The invoice total VAT amount and VAT amount in accounting currency must have the same sign (both positive or both negative). They cannot have opposite signs.

Severity

Fatal

Rule set

Peppol BIS 3.0

Country

All EU

Fix type

AUTO-FIX

Confidence

85%

Engine Classification

Harmonize all payment means codes to single value

Confidence: 85% · Applied automatically in pipeline

What is PEPPOL-EN16931-R055?

PEPPOL-EN16931-R055 is a fatal validation rule defined in the Peppol BIS 3.0 specification. It validates the PaymentMeansCode 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:PaymentMeans/cbc:PaymentMeansCode

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Why This Error Matters

Invoice will be rejected by PEPPOL validation. VAT amounts must be consistently positive or negative across currencies.

PEPPOL-EN16931-R055 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
·Rejected by PEPPOL Access Points
·Error returned: PEPPOL-EN16931-R055
·Specification: Peppol BIS 3.0

Before / After

Failing XML

<Invoice>
  <!-- Issue: Invoice total VAT amount and Invoice total VAT amount in acc -->
</Invoice>

Corrected XML

<Invoice>
  <!-- Issue resolved per Peppol BIS 3.0 -->
</Invoice>

Technical Reference

XPath//cac:PaymentMeans/cbc:PaymentMeansCode

SpecPeppol BIS 3.0

Operationset_value

StrategyHarmonize all payment means codes to single value

Common Causes

·Currency conversion resulted in sign flip
·Manual entry error with wrong sign
·One amount corrected without updating other
·Credit note handling inconsistency
·Calculation error in currency conversion

Seeing this in production? The API handles PEPPOL-EN16931-R055 automatically. See the fix response →

Handle PEPPOL-EN16931-R055 Automatically in Your Pipeline

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

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PEPPOL-EN16931-R055:Invoice total VAT amount and Invoice total VAT amount in accounting currency...