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Error

FX-SCH-A-000503: Check the seller's company registration scheme

In short

Error: fails the selected checks.

FX-SCH-A-000503 means the scheme code on the seller's company registration number (BT-30) is not in the registration scheme list used by the Basic profiles of Factur-X and ZUGFeRD. Use the listed four-digit ISO 6523 code matching the number's register, such as 0002 for a French SIREN or 0106 for a Dutch KvK number.

On this page

What it means

This rule checks a non-empty schemeID attribute on ram:SellerTradeParty/ram:SpecifiedLegalOrganization/ram:ID against the profile's registration scheme list. The scheme identifies the register or numbering system. This test does not check the registration number itself or establish whether a scheme is required.

Why it matters

The scheme tells receiving software which registration system the company registration number belongs to.

How to fix it

Check which register issued the seller's company registration number. Correct schemeID on ram:SellerTradeParty/ram:SpecifiedLegalOrganization/ram:ID under ram:ApplicableHeaderTradeAgreement to the matching listed code, preserving leading zeroes. If your software exports the wrong scheme, ask its supplier to correct that mapping. Recheck the corrected 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 1.0.9-2
ZUGFeRD 2.5 BASIC 2.5.2
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether FX-SCH-A-000503 still fails, and which other rules do.

Updated 6 November 2026