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Error

FX-SCH-A-000817: Keep at most one delivery party tax registration

In short

Error: fails the selected checks.

FX-SCH-A-000817 means your delivery party, ram:ShipToTradeParty, contains more than one ram:SpecifiedTaxRegistration block. Check which tax registration you need to report and keep at most one block.

On this page

What it means

Under ram:ApplicableHeaderTradeDelivery, each ram:ShipToTradeParty may contain zero or one ram:SpecifiedTaxRegistration element. The test counts registration blocks and does not select a preferred type of tax number.

Why it matters

The EXTENDED profile provides one optional tax registration block for the delivery party. This limit does not favour a VAT number over a national tax number.

How to fix it

Check which tax registration is relevant to your delivery party's details. Keep that registration in one ram:SpecifiedTaxRegistration inside ram:ApplicableHeaderTradeDelivery/ram:ShipToTradeParty and remove the other registration blocks. 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

Element 'ram:SpecifiedTaxRegistration' may occur at maximum 1 times.

Where this rule applies

Rule set Version
Factur-X 1.09 EXTENDED 1.0.9-2
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-000817 still fails, and which other rules do.

Updated 6 November 2026