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Warning

CII-SR-241: Seller contact should not have an instant messaging address

In short

Warning: worth checking.

CII-SR-241 means the seller's contact details include an instant messaging address, which EN 16931 does not use. It is only a warning: delete the InstantMessagingUniversalCommunication element from the seller's contact.

On this page

What it means

In a CII file, the seller's contact (BG-6) has fields for a name (BT-41), a phone number (BT-42) and an email address (BT-43). This rule warns when the contact also has an InstantMessagingUniversalCommunication element, such as a chat handle.

Why it matters

This is a warning, so the invoice is still accepted. The standard has no field for chat addresses, so the buyer's software will normally ignore it.

How to fix it

Remove the chat or messaging address from the seller's contact in your invoicing software, or switch off exporting it. If you edit the XML by hand, delete the InstantMessagingUniversalCommunication element inside the seller's DefinedTradeContact. The buyer can still reach you through the phone number and email address.

The rule as published

InstantMessagingUniversalCommunication 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-241 still fails, and which other rules do.

Updated 6 November 2026