Error codes · EN 16931

PEPPOL-EN16931-R110Partly

Start date of line period MUST be within invoice period.

This is the rejection, word for word: „[PEPPOL-EN16931-R110] The start date of a line period must fall within the invoice period. Line periods cannot extend before the overall invoice period begins.“

What to have readyThe correct figures from your bookkeeping; we show you which field is affected.
What we doInvoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (PEPPOL-EN16931-R110).
If you enter it yourself in your invoicing software
Before
<Invoice>
  <!-- Issue: Start date of line period MUST be within invoice period. -->
</Invoice>
After
<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>
What the finding looks likeExample
FindingNeeds your check · PEPPOL-EN16931-R110
Location//cac:InvoiceLine/cac:InvoicePeriod/cbc:StartDate
From youThe correct figures
ThenChecked again
ProofSHA-256 and /verify link after the check