UBL-CR-192: Other contact channels for the seller should be left out

What it means

The rule checks the seller's contact (cac:AccountingSupplierParty/cac:Party/cac:Contact) and fails when it holds a cac:OtherCommunication. In the full UBL standard this block lists further ways to reach the contact besides telephone and email. EN 16931 only has the telephone number (BT-42) and the email address (BT-43).

Why it matters

This is only a warning, so the invoice is still accepted. The recipient's software reads the telephone number and email address and nothing else from the contact. Any other channel is ignored.

How to fix it

Remove cac:OtherCommunication from cac:Contact under the seller party and export again. Check that a telephone number and an email address remain in cbc:Telephone and cbc:ElectronicMail. In your invoicing software, look for extra contact fields in the company details and switch them off in the export. It is worth fixing when the only way to reach you is in the extra channel, because the recipient will not see it.

The rule as published

A UBL invoice should not include the AccountingSupplierParty Party Contact OtherCommunication

Where this rule applies