warningcountryROUubl-2.1

RO-R-004:RON conversion may be required

Fix: Include RON equivalents for tax calculation.

Romanian tax reporting requires RON amounts.

Severity
Warning
Rule set
ubl-2.1
Country
ROU
Fix type
BLOCKED

Engine Classification

Financial or legal field · Modification blocked by policy

Reason: Romanian tax reporting requires amounts in RON (Romanian Leu). Converting from foreign currency requires recalculating all amounts at the appropriate BNR (National Bank of Romania) exchange rate. This financial calculation cannot be automated safely. Issue the invoice in RON from your source system, or include RON equivalents per Romanian regulations.

What is RO-R-004?

RO-R-004 is a warning validation rule defined in the ubl-2.1 specification (ROU national rules). It validates the DocumentCurrencyCode element under Invoice in the UBL invoice XML.

The invoice may pass transmission, but this non-compliance can cause problems during tax audits or buyer-side processing.

Target path: XPath: /Invoice/cbc:DocumentCurrencyCode

This error requires manual correction — financial fields are protected by policy.

Why This Error Matters

Tax reported in Romanian leu.

RO-R-004 is a soft failure that can cause issues at the receiving end — tax audits, ERP processing, or VAT reconciliation mismatches.

Validator Behavior

  • ·Generates validation warning
  • ·Fails UBL schema validation
  • ·Error returned: RO-R-004
  • ·Specification: ubl-2.1

How to Fix It

1.

Check currency

If not RON

2.

Add conversion

RON amounts for VAT

XML Example

Generic example based on the rule's target XPath. Your actual XML structure may differ.

Before
<!-- Incorrect value -->
<cbc:DocumentCurrencyCode>INVALID</cbc:DocumentCurrencyCode>
After
<!-- Corrected value -->
<cbc:DocumentCurrencyCode>VALID_VALUE</cbc:DocumentCurrencyCode>

Technical Reference

XPathXPath: /Invoice/cbc:DocumentCurrencyCode
Specubl-2.1

Common Causes

  • ·EUR invoice without RON conversion

Seeing this in production? The API handles RO-R-004 automatically. See the fix response →

Frequently Asked Questions

Romanian tax reporting requires RON amounts.

Include RON equivalents for tax calculation. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

RO-R-004 is a warning that should be addressed.

Related Errors

RO-R-001Romanian CIF/CUI required

Related Content

Errors
e-Factura submission requiredRomanian CIF/CUI required
Answers
What are the differences between e-invoice formats?Which EU countries have e-invoicing mandates and what are the deadlines?

Last updated: 3 March 2026

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