What the rule checks, the affected field, an example correction and how to validate again.
Affected field
seller.phone
Business term
BT-42
Reviewed
10 Oct 2026
Cause and affected field
The published XRechnung rule expects at least three digits in the seller’s contact telephone number. Replace placeholders with the reachable contact number.
Rule family: XRechnung 3.0.2. The finding from the ruleset actually executed remains authoritative.
Correction and example
Fails · schematic excerpt
xx
Passes · replace with your details
+49 30 123456
Validate again
Correct the original in your invoicing system and inspect the replacement file. Ask the supplier to correct an incoming invoice.
Technical validity does not confirm acceptance by the recipient’s portal.
