Reference

BR-03 Invoice issue date is required

An invoice shall have an Invoice issue date (BT-2) stating the date on which the invoice was issued.

This is an EN 16931 core rule. The issue date is the reference point for payment terms, the VAT period and the legal retention period. In UBL the XML schema already rejects a missing or empty cbc:IssueDate, so BR-03 is mostly reported for CII invoices whose date string is exported empty, for example when the date field of the source system is not mapped.

Solution

In UBL, add cbc:IssueDate in ISO 8601 date format (YYYY-MM-DD). In CII, fill rsm:ExchangedDocument/ram:IssueDateTime/udt:DateTimeString with format="102" (YYYYMMDD). The value must not be empty.

Quick actions

Validate XML Convert invoice

Valid Examples

BT-2 = 2024-05-01 — a valid ISO 8601 date

Invalid Examples

In CII, udt:DateTimeString (format 102) under ram:IssueDateTime is empty; in UBL a missing or empty cbc:IssueDate is already an XML schema error

Code Examples

Valid XML

<rsm:ExchangedDocument>
  <ram:ID>RE-2024-0001</ram:ID>
  <ram:IssueDateTime>
    <udt:DateTimeString format="102">20240501</udt:DateTimeString>
  </ram:IssueDateTime>
</rsm:ExchangedDocument>

Invalid XML

<rsm:ExchangedDocument>
  <ram:ID>RE-2024-0001</ram:ID>
  <ram:IssueDateTime>
    <udt:DateTimeString format="102"></udt:DateTimeString>
  </ram:IssueDateTime>
</rsm:ExchangedDocument>