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Error

FX-SCH-A-000411: A seller tax number entry must hold exactly one ID

In short

Error: fails the selected checks.

FX-SCH-A-000411 means a seller tax registration containing an ID marked schemeID="FC" also contains extra ram:ID elements. Keep just the seller's tax number ID (BT-32) in that entry, and remove or correctly relocate the extra IDs before exporting and rechecking the file.

On this page

What it means

This rule selects ram:SpecifiedTaxRegistration under the header ram:SellerTradeParty when at least one ram:ID has schemeID="FC". It then counts every ram:ID in that registration, including IDs with another scheme or no scheme, and requires exactly one. The selection already requires an FC ID, so a failure means extra ID elements. It applies in all five Factur-X and ZUGFeRD profiles.

Why it matters

One ID per registration keeps the seller's tax number separate from other identifiers, such as a VAT number.

How to fix it

Check the seller's tax number (BT-32). In each affected ram:SpecifiedTaxRegistration, keep one ram:ID marked schemeID="FC". Remove duplicate IDs and put any different identifier in its correct field or XML structure. Any separate registrations must also meet the profile's other rules. If your software creates extra IDs inside one entry, ask its supplier to correct the export. Export and recheck the 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

Element 'ram:ID' must occur exactly 1 times.

Where this rule applies

Rule set Version
Factur-X 1.09 MINIMUM 1.0.9-2
Factur-X 1.09 BASIC WL 1.0.9-2
Factur-X 1.09 BASIC 1.0.9-2
Factur-X 1.09 EN 16931 1.0.9-2
Factur-X 1.09 EXTENDED 1.0.9-2
ZUGFeRD 2.5 MINIMUM 2.5.2
ZUGFeRD 2.5 BASIC WL 2.5.2
ZUGFeRD 2.5 BASIC 2.5.2
ZUGFeRD 2.5 EN 16931 2.5.2
ZUGFeRD 2.5 EXTENDED 2.5.2
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether FX-SCH-A-000411 still fails, and which other rules do.

Updated 6 November 2026