errorPEPPOL_BIS
PEPPOL-EN16931-CL006:Invoice period description code must be according to UNCL 2005 D.16B.
The invoice period description code must be from the UNCL 2005 D.16B list. This code describes what the invoicing period represents (delivery period, service period, etc.).
We can fix this automatically
AUTO-FIXAuto-fix: Map period description code to valid UNCL 2005 value. Common mappings for service/delivery periods. Safe code normalization.
No manual changes needed
Upload and Fix NowWhy This Error Matters
Invoice will be rejected by PEPPOL validation. Period descriptions must use standard codes for clarity.
Common Causes
- Invalid period description code
- Using wrong code list for period type
- Custom description code used
- Typo in period code
- Old version of code used
Frequently Asked Questions
The invoice period description code must be from the UNCL 2005 D.16B list. This code describes what the invoicing period represents (delivery period, service period, etc.).
The invoice period description code must be from the UNCL 2005 D.16B list. This code describes what the invoicing period represents (delivery period, service period, etc.). You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, PEPPOL-EN16931-CL006 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of PEPPOL-EN16931-CL006 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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