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Warning

CII-SR-274: Buyer electronic address should not carry a number

In short

Warning: worth checking.

CII-SR-274 means the buyer's electronic address also carries a number (CompleteNumber), which the invoice standard does not use there. Remove the number, and if it is a phone number, put it in the telephone field of the buyer contact.

On this page

What it means

The buyer's electronic address (BT-49) is written with an extra CompleteNumber element beside the address. EN 16931 only uses the address itself and its scheme identifier there. A telephone number for the buyer contact (BT-57) has its own element.

Why it matters

This is only a warning, so the file is still accepted. A number in the address element means nothing to software that follows EN 16931, so it will probably be dropped. If it was meant as a phone number, the buyer will not see it.

How to fix it

Check the buyer's electronic address field on the customer record in your invoicing software and make sure it holds only the address, with no phone number added. Put the phone number in the buyer contact's telephone field. If you build the XML yourself, delete CompleteNumber from the buyer's URIUniversalCommunication.

The rule as published

CompleteNumber should not be present

Where this rule applies

Rule set Version
EN 16931 (CII) 1.3.17
XRechnung 3.0 (CII) 3.0.2
NLCIUS (CII) 1.0.3.13
France CTC (CII) 1.4.0-04
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether CII-SR-274 still fails, and which other rules do.

Updated 6 November 2026