LEG: Legal information incorrect
What it means
Peppol reason LEG in an Invoice Response means information in the invoice does not meet legal requirements.
The usual cause
A legally required detail is missing or wrong, for example the buyer's VAT number (BT-48). The response may name the field and the correct value.
How to fix it
Correct the detail the response names, or ask the buyer which legal information needs correcting. Send a corrected invoice, a credit note or both as requested in the response.
Once the file is corrected, check it again for free: Validate a Peppol BIS invoice
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice
The code as published
Read the official document . Source: Peppol BIS Invoice Response 3.1 (BIS 63A), with its code lists, version Peppol BIS 3, 2026-Q2 release, published by OpenPeppol AISBL, read on 8 November 2026.
Klarbon explains each code in its own words; the official wording is in the document linked above.
Look at your file
Check the invoice against the rules this portal applies: Validate a Peppol BIS invoice. Validate a Peppol BIS invoice