GR-R-001-3
Validation message
Explanation
For a Greek seller, the second part of the invoice number must contain the invoice date in the format DD/MM/YYYY, with slashes and leading zeros, e.g. 05/03/2026. It must match the invoice's issue date exactly.
How to fix
Ask the seller for a corrected invoice whose number carries the issue date as DD/MM/YYYY in its second part.
Applies to
- PEPPOL BIS (UBL)