IRR_EXT_DOC: Attachment type not allowed

The usual cause

An attachment embedded in the invoice has a file type or extension that is not accepted.

How to fix it

Convert the attachment to an accepted type, such as PDF, or remove it, then send the invoice again.

The code as published

Le type et/ou l’extension des pièces jointes dans le flux ne sont pas conformes.

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_NOM_PJ Attachment name not valid
• IRR_SYNTAX File syntax not valid

All Chorus Pro and PPF codes

Updated 8 November 2026