Error Guide

🇦🇹 BR-AT-01: Austrian UID number required in Austria

ErrorB2G MandatoryNeeds Input

Austrian invoices must include the UID-Nummer (VAT ID) in ATU + 8 digits format.

Quick Facts

Severity

Error (rejection)

Ruleset

peppol-bis-3

Mandate

B2G Only

Fix Type

Needs input

Why This Matters in Austria

Austria requires (B2G) e-invoicing using ebInterface 6.0, Peppol BIS Billing 3.0. Invoices with this error will be rejected. They cannot be processed for Austria compliance.

How to Fix BR-AT-01

1
Get UID
Format: ATU + 8 digits
2
Add to invoice
In PartyTaxScheme/CompanyID
3
Validate
Check with Austrian VAT validation service

Austria E-Invoicing Requirements

Phase

Status

Scope

B2G

Live (Jan 2014)

All federal government suppliers

B2B mandate

2027-2028

Expected under ViDA

Common Causes

•Missing ATU prefix
•Wrong length
•Invalid UID

Fix BR-AT-01 automatically

Upload your invoice and let Invoice Navigator auto-remediate this error.

Try the Validator Austria Guide →