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PEPPOL-EN16931-F001

Validation message

A date MUST be formatted YYYY-MM-DD.

Explanation

PEPPOL requires every date, such as the invoice date, due date, delivery date and the start or end of a period, in the format YYYY-MM-DD (for example 2026-04-10), without a time or time zone, and as a date that actually exists.

How to fix

Ask the seller for a corrected invoice in which every date is written as YYYY-MM-DD. This usually comes from the seller's invoicing software, not from data entry.

Applies to

  • PEPPOL BIS (UBL)