IRR_NOM_PJ: Attachment name not valid

The usual cause

An attachment's name breaks the naming rules. Chorus Pro, for example, does not allow the characters % $ ! & / \ : ; « » # @ in a file name, or a name longer than 256 characters.

How to fix it

Rename the attachment without special characters and send the invoice again.

The code as published

Le nom d’une ou plusieurs pièces jointes ne respecte pas les règles de nommage.

Official text in its original language, from Direction générale des Finances publiques, Spécifications externes de la facturation électronique v3.2 (impots.gouv.fr), mise à jour du 30 avril 2026, under Licence Ouverte / Open Licence 2.0 (Etalab).

Read the official document . Source: Dossier de spécifications externes de la facturation électronique, Dossier général, version 3.2, published by Direction générale des Finances publiques (DGFiP), read on 8 November 2026.

Other Chorus Pro and PPF codes

• IRR_TAILLE_F File in the delivery too large
• IRR_TAILLE_PJ Attachment too large
• IRR_VID_PJ Empty attachment
• IRR_NOM_F File name not valid
• IRR_EXT_DOC Attachment type not allowed
• IRR_SYNTAX File syntax not valid

All Chorus Pro and PPF codes

Updated 8 November 2026