BR-03
EN 16931
FATAL
Official rule text
An Invoice shall have an Invoice issue date (BT-2).
What this error means
Every invoice must carry an Issue date (BT-2, cbc:IssueDate) in the format YYYY-MM-DD.
How to fix it
- Add
cbc:IssueDate, e.g.2026-08-06. - Use the XML date format exactly - no time part, no timezone, no
06/08/2026.
Related rules
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