errorISPEPPOL_BIS

IS-R-008:When Icelandic invoices include EINDAGI (final due date) in supporting documents, the date must be in YYYY-MM-DD format.

When Icelandic invoices include EINDAGI (final due date) in supporting documents, the date must be in YYYY-MM-DD format.

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Auto-fix: Convert EINDAGI date to YYYY-MM-DD format. Safe date format normalization.

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Why This Error Matters

Invoice will be rejected by Icelandic validation. EINDAGI date must use ISO date format.

Common Causes

  • EINDAGI date in wrong format
  • Date format DD-MM-YYYY used instead
  • Icelandic date format used instead of ISO
  • Date formatting error in export
  • Manual entry with wrong format

Frequently Asked Questions

When Icelandic invoices include EINDAGI (final due date) in supporting documents, the date must be in YYYY-MM-DD format.
When Icelandic invoices include EINDAGI (final due date) in supporting documents, the date must be in YYYY-MM-DD format. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, IS-R-008 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of IS-R-008 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.

Last updated: 16 January 2026

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