How do I fix GR-S-008-1?

This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (GR-S-008-1). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.

Is GR-S-008-1 a critical error?

Yes, GR-S-008-1 is a critical error that will cause invoice rejection. It must be fixed before submission.

Can GR-S-008-1 be automatically fixed?

Many instances of GR-S-008-1 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.

errorGRCCIUS-GR (Greece)

`GR-S-008-1`:When Supplier is Greek, there should be one invoice url

Greek supplier invoices should include one invoice URL for accessing the invoice document. This is a recommendation for better accessibility.

Severity

Fatal

Rule set

CIUS-GR (Greece)

Country

GRC

Fix type

INPUT REQUIRED

Engine Classification

Business data required · Explicit input workflow · No assumptions made

Required input: Invoice Document URL

What is GR-S-008-1?

GR-S-008-1 is a fatal validation rule defined in the CIUS-GR (Greece) specification (GRC national rules). It checks whether when supplier is greek, there should be one invoice url.

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.

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Why This Error Matters

Invoice may be flagged as incomplete but not necessarily rejected. Invoice URL improves accessibility and verification.

GR-S-008-1 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.

Validator Behavior

·Causes invoice rejection
·Error returned: GR-S-008-1
·Specification: CIUS-GR (Greece)

Before / After

Failing XML

<Invoice>
  <!-- Issue: When Supplier is Greek, there should be one invoice url -->
</Invoice>

Corrected XML

<Invoice>
  <!-- Issue resolved per CIUS-GR (Greece) -->
</Invoice>

Technical Reference

SpecCIUS-GR (Greece)

StrategyRequires user input: Invoice URL if available. User should provide a URL where the invoice can be accessed online.

Common Causes

·Invoice URL not provided
·Online invoice portal not configured
·ERP does not generate invoice URLs
·URL field not mapped in export
·Manual invoice without URL generation

Seeing this in production? The API handles GR-S-008-1 automatically. See the fix response →

Related Errors

GR-R-003

Greek invoice type code required

GR-R-009

Greek suppliers must use their correct TIN as the electronic address for...

GR-S-011

Greek suppliers must provide their Seller Tax Registration Number, prefixed...

Last updated: 27 February 2026

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Handle GR-S-008-1 Automatically in Your Pipeline

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

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GR-S-008-1:When Supplier is Greek, there should be one invoice url