The buyer post code is missing
The `Buyer post code` element (BT-53) must be provided.
Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.
The message your validator prints
Copied verbatim from the sealed artefact: this is the exact sentence the check prints when this rule fails.
[BR-DE-9] Das Element "Buyer post code" (BT-53) muss übermittelt werden.
Quoted from schematron-xrechnung 3.0.2, licensed under Apache-2.0.
Common searches around this code
These phrases mirror what an integrator searches for: code, syntax, rule, business field and correction.
Test your file with this error in mind
Upload the invoice involved: the report will say whether this code appears, where it appears in the document, and whether Factlint can only report it or also fix it.
To automate this check in an ERP flow, call the validation API and link every returned code to its public page.
Why this error happens
The mirror of BR-DE-4, on the buyer's side. A foreign customer captured without a post code — because the form does not use one for their country — triggers this rule even though the address is correct.
How to fix it
Complete the customer record. Factlint reports it as `needs_input` and never fabricates a default value.
XML correction example
<!-- ram:BuyerTradeParty/ram:PostalTradeAddress/ram:PostcodeCode absent -->
<ram:PostcodeCode>20095</ram:PostcodeCode>