errorcountryGRCubl-2.1

GR-R-002:myDATA reporting required

Fix: Submit invoice to myDATA and include MARK.

Greek invoices must be reported to myDATA (AADE).

Severity
Fatal
Rule set
ubl-2.1
Country
GRC
Fix type
BLOCKED

Engine Classification

Financial or legal field · Modification blocked by policy

Reason: Greek invoices must be reported to myDATA (AADE tax authority system). This requires integration with the myDATA API and cannot be done by modifying the invoice XML. Use invoicing software with myDATA reporting capability.

What is GR-R-002?

GR-R-002 is a fatal validation rule defined in the ubl-2.1 specification (GRC national rules). It validates the myDATA API integration element in the UBL invoice XML.

When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.

Target path: myDATA API integration

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

Why This Error Matters

Greek law requires myDATA reporting.

GR-R-002 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.

Validator Behavior

  • ·Causes invoice rejection
  • ·Fails UBL schema validation
  • ·Error returned: GR-R-002
  • ·Specification: ubl-2.1

How to Fix It

1.

Submit to myDATA

Via AADE platform or API

2.

Get MARK

Unique authentication code

3.

Add to invoice

Include MARK reference

XML Example

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

Before
<!-- Triggers validation error -->
<myDATA API integration></myDATA API integration>
After
<!-- Corrected -->
<myDATA API integration>VALID_VALUE</myDATA API integration>

Technical Reference

XPathmyDATA API integration
Specubl-2.1

Common Causes

  • ·Not submitted to myDATA
  • ·Missing MARK

Seeing this in production? The API handles GR-R-002 automatically. See the fix response →

Frequently Asked Questions

Greek invoices must be reported to myDATA (AADE).

Submit invoice to myDATA and include MARK. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Yes, GR-R-002 is a critical error that must be fixed.

Related Errors

GR-R-001Greek AFM (VAT number) requiredGR-R-003Greek invoice type code required

Related Content

Errors
Greek AFM (VAT number) requiredGreek VAT category code 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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