Seller name is missing
What it means
The seller name (BT-27) is the legal registered name of the party issuing the invoice, which is not always the trading name shown on the letterhead. It is required for the document to be a valid invoice for tax purposes.
Can it be fixed automatically?
The fix is mechanical once you provide the value, but the value itself is yours: it cannot be derived from the invoice and will not be guessed.
This one can be repaired automatically. The API applies the fix, re-validates, and reports exactly what changed with before and after values.
How to fix it
Supply the seller's registered legal name. Where the document already carries a trading name in cac:PartyName it may be the same value, but the two are distinct fields and must not be assumed equal.
Where it applies
| CII | //ram:SellerTradeParty/ram:Name |
|---|---|
| UBL | /Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName |
Check your own invoice
curl -X POST https://einvoice.mgsoft.sk/v1/validate \
-H 'Content-Type: application/xml' \
--data-binary @invoice.xml