BR-03· Rule

BR-03 — missing or invalid issue date

The issue date (BT-2) is mandatory and must be YYYYMMDD (format 102).

Fields BT-2

Why your invoice gets rejected

Dashed locale dates or a missing format="102" attribute. Common in PHP/Python exports.

How to fix

  1. 1Use format 102 YYYYMMDD
  2. 2Normalize dates at export
  3. 3Test with the public validator

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