How to fix BR-DE-28
In BT-43 soll genau ein @-Zeichen enthalten sein, welches nicht von einem Leerzeichen, einem Punkt, aber mindestens zwei Zeichen auf beiden Seiten flankiert werden soll. Ein Punkt sollte nicht am Anfang oder am Ende stehen.
XRechnung rule from the KoSIT XRechnung 3.0 schematron (German CIUS of EN 16931). It applies only to invoices whose specification identifier (BT-24) is XRechnung. Such files are checked against EN 16931 and the KoSIT XRechnung rules instead of the full Peppol BIS rule set. Check your file with the XRechnung validator.
What this rule checks
The Seller contact email address (BT-43) should be a plausible email address: exactly one @, no spaces, and a domain with at least one dot that does not start or end with a dot.
Referenced business terms
This rule references the following EN 16931 business term. Click through for the full definition, the UBL XPath and the cardinality.
How to fix it
Put a valid address in cac:AccountingSupplierParty → cac:Party → cac:Contact → cbc:ElectronicMail (e.g. invoices@example.de). In CII, use ram:EmailURIUniversalCommunication → ram:URIID.
Related rules
Validate your invoice
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