`BR-63`

EN 16931 · validation rule

EN 16931Error

The buyer electronic address (BT-49) has no scheme identifier. The sender must set the schemeID attribute on cac:AccountingCustomerParty/cac:Party/cbc:EndpointID / ram:BuyerTradeParty/ram:URIUniversalCommunication/ram:URIID to an EAS code such as EM, 0088 or 0204.

Field: buyer.electronic_address.scheme (BT-49-1)
Rule set: EN 16931
Rule-set version: EN 16931 validation artefacts 1.3.17 · in force since 2026-10-13 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/BR-63?lang=en