The seller contact email address is missing
The `Seller contact email address` element (BT-43) 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-7] Das Element "Seller contact email address" (BT-43) 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
Not to be confused with BT-34, the seller's electronic address for exchange purposes (checked by PEPPOL-EN16931-R020): BT-43 is a person's mailbox, BT-34 is the party's routing endpoint. Both are required, and conflating them always leaves one of the two empty.
How to fix it
Fill in the contact's address in the seller record. Factlint reports it as `needs_input` and never fabricates a default value.
XML correction example
<!-- ram:DefinedTradeContact/ram:EmailURIUniversalCommunication absent -->
<ram:URIID>[email protected]</ram:URIID>