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Error

FX-SCH-A-000423: Use an allowed buyer country code

In short

Error: fails the selected checks.

FX-SCH-A-000423 means the non-empty country code in your buyer's postal address (BT-55) is not allowed by the Basic WL profile. Correct ram:BuyerTradeParty/ram:PostalTradeAddress/ram:CountryID to the listed code for the buyer's country.

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What it means

This Basic WL rule for Factur-X and ZUGFeRD compares a non-empty buyer country code with the profile's country list. An empty value does not fail this test; this is not a check that the country element exists.

Why it matters

A shared country code lets software read the country in the buyer's address consistently.

How to fix it

Check the buyer's actual country and use its two-letter ISO 3166-1 code from the profile's list, such as DE, FR, NL or GB. Replace a full country name or a three-letter code in the buyer's ram:CountryID. For the United Kingdom, use GB rather than UK. 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 'ram:CountryID' 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-000423 still fails, and which other rules do.

Updated 6 November 2026