GR-S-008-1:When Supplier is Greek, there should be one invoice url
Fix: 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). Provide the required value in the free validator.
Greek supplier invoices should include one invoice URL for accessing the invoice document. This is a recommendation for better accessibility.
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).
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
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 — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Error returned: GR-S-008-1
- ·Specification: CIUS-GR (Greece)
How to Fix It
Identify the missing data
Greek supplier invoices should include one invoice URL for accessing the invoice document. This is a recommendation for better accessibility.
Provide the required value
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).
Re-validate your invoice
Upload the corrected invoice to confirm GR-S-008-1 is resolved.
Before / After
<Invoice> <!-- Issue: When Supplier is Greek, there should be one invoice url --> </Invoice>
<Invoice> <!-- Issue resolved per CIUS-GR (Greece) --> </Invoice>
Technical Reference
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 →
Frequently Asked Questions
Greek supplier invoices should include one invoice URL for accessing the invoice document. This is a recommendation for better accessibility.
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.
Yes, GR-S-008-1 is a critical error that will cause invoice rejection. It must be fixed before submission.
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.
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Last updated: 14 April 2026
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