Error code BR-02
The invoice number is missing
Every invoice needs a number (BT-1).
The official rule
“An Invoice shall have an Invoice number (BT-1).”
Official text, in the language the rule set publishes it in.
Fields named: BT-1
Common causes
- The invoice was exported before it was given a number.
- A template or draft invoice was sent instead of the final one.
How to fix it
- Finalise the invoice in your software so it gets its number, then send it again.
Wrong vs. right (UBL)
Wrong
<cbc:CustomizationID>…</cbc:CustomizationID> <cbc:ProfileID>…</cbc:ProfileID> <cbc:IssueDate>2026-10-05</cbc:IssueDate>
Right
<cbc:CustomizationID>…</cbc:CustomizationID> <cbc:ProfileID>…</cbc:ProfileID> <cbc:ID>2026-0001</cbc:ID> <cbc:IssueDate>2026-10-05</cbc:IssueDate>