BR-03: Invoice issue date (BT-2) is missing
Severity: fatal ยท Syntax: CII, UBL
Official message
An Invoice shall have an Invoice issue date (BT-2).
What this means
BT-2, the invoice issue date, must be present. UBL checks normalize-space(cbc:IssueDate) != ''. CII checks IssueDateTime in ExchangedDocument.
Typical cause
The date is only in a free-text note, not in the date element.
How to fix it
Write the date into the date element, in UBL as YYYY-MM-DD.
UBL
<cbc:IssueDate>2026-10-19</cbc:IssueDate>CII
<ram:IssueDateTime>
<udt:DateTimeString format="102">20261019</udt:DateTimeString>
</ram:IssueDateTime>Business term
BT-2
Related rules
Context and assertion
UBL /ubl:Invoice | /cn:CreditNote
CII /rsm:CrossIndustryInvoice
UBL
normalize-space(cbc:IssueDate) != ''CII
normalize-space(rsm:ExchangedDocument/ram:IssueDateTime/udt:DateTimeString[@format='102']) != ''Check a file now, free of charge
curl -F "file=@rechnung.xml" https://checkxrechnung.com/v1/validate
Questions
What does BR-03 actually check?
BT-2, the invoice issue date, must be present. UBL checks normalize-space(cbc:IssueDate) != ''. CII checks IssueDateTime in ExchangedDocument.
How do I fix BR-03?
Write the date into the date element, in UBL as YYYY-MM-DD.
If BR-03 passes, is the invoice legally compliant?
No. This page helps you read this one Schematron assertion. A pass is not a statement about tax law, portal acceptance, or bank overlays.