BR-10: what it means and how to fix it

An invoice must contain the buyer's postal address.

RuleBR-10
StandardEN 16931-1, the European standard for electronic invoices
SeverityError (the invoice is not conformant)
ConcernsBG-8: Buyer postal address

How to fix it

Add the buyer's address with at least the country code.

Where the field is in the XML

TermCII (XRechnung-CII, ZUGFeRD, Factur-X)UBL (XRechnung-UBL, Peppol)
BG-8
Buyer postal address
ram:BuyerTradeParty/ram:PostalTradeAddresscac:AccountingCustomerParty/cac:Party/cac:PostalAddress

Check your own file for this rule

Up to 5 MB. Read in memory for this one request and not stored.

From your code

curl -H "Authorization: Bearer $API_KEY" -H "Content-Type: application/xml" \
  --data-binary @invoice.xml "https://agent-data-tools.revmesh2074.workers.dev/einvoice/validate"

The answer lists every broken rule with its number, the field, a message with the figures from your file and the fix. E-invoice API: validate, convert to JSON, and create XRechnung or ZUGFeRD XML from JSON.

Questions

What does BR-10 mean?

An invoice must contain the buyer's postal address. It is a rule of EN 16931-1, the European standard for electronic invoices.

How do I fix BR-10?

Add the buyer's address with at least the country code.

Is BR-10 an error or a warning?

An error: a validator reports the invoice as not conformant, and a recipient that validates incoming e-invoices can reject it.

Rule numbers are those of EN 16931-1; the explanation is ours. Not tax or legal advice.