# BR-63

> The Buyer electronic address (BT-49) shall have a Scheme identifier.

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/br-63

## Official rule text

The Buyer electronic address (BT-49) shall have a Scheme identifier.

## Why did my invoice fail BR-63?

The Buyer electronic address (BT-49) — the buyer's electronic routing identifier — must include a Scheme identifier identifying the electronic address scheme. This ensures the recipient endpoint is unambiguous and the document can be delivered to the correct party.

## Common causes

- cac:AccountingCustomerParty/cac:Party/cbc:EndpointID is present without a schemeID attribute.
- The schemeID value is not a valid EAS (Electronic Address Scheme) code.
- The buyer's electronic address was omitted and only a postal or VAT identifier was supplied.

## How do I fix it?

```
<cbc:EndpointID schemeID="9930">DE123456789</cbc:EndpointID> (choose the correct EAS code for the buyer's address scheme).
```