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Error

FX-SCH-A-000429: Use an allowed electronic address scheme

In short

Error: fails the selected checks.

FX-SCH-A-000429 means the non-empty scheme code (BT-49-1) for your buyer's electronic address (BT-49) is not allowed by the Basic WL profile. Correct ram:BuyerTradeParty/ram:URIUniversalCommunication/ram:URIID/@schemeID to a listed code matching the address.

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What it means

This Basic WL rule for Factur-X and ZUGFeRD compares a non-empty electronic address scheme with the profile's permitted codes. An empty value does not fail this test; attribute presence is checked separately.

Why it matters

A shared scheme code identifies the addressing system used for the buyer's electronic address. This check does not establish whether delivery is possible.

How to fix it

Find the code for the buyer's actual addressing system and check it against the Basic WL list. Examples include EM for email, 0088 for a GLN and 0204 for a Leitweg-ID. Put the matching code in ram:BuyerTradeParty/ram:URIUniversalCommunication/ram:URIID/@schemeID rather than a label such as email or Peppol. Export and recheck your file.

Once the file is corrected, check it again for free: Validate a ZUGFeRD invoice

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice Beta

The rule as published

Value of '@schemeID' is not allowed.

Where this rule applies

Rule set Version
Factur-X 1.09 BASIC WL 1.0.9-2
ZUGFeRD 2.5 BASIC WL 2.5.2
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether FX-SCH-A-000429 still fails, and which other rules do.

Updated 6 November 2026