Invoices, credit notes, and cancellations behave differently in Slovakia: credit notes reuse the invoice flow, and there is no formal cancellation process. See what each document type requires.

1. Build your invoice in SCI format and wrap it in an SBD. See Create a document.

2. Submit to Sovos. See Send invoices. You receive HTTP 202 with a documentId.

3. Poll for notifications using your taxId and SenderSystemId. See Send invoices.

4. Track the status sequence. Delivery and TDD reporting are independent events.

5. When you receive 209 (Completed), the submission is done.

Credit note

A credit note follows the same submission and status sequence as a standard invoice.

Differences in the invoice body:

• Set InvoiceTypeCode to 381.

• Include a BillingReference block referencing the original invoice number and issue date.

• Amounts should reflect the credit being applied.

See Create a document for the credit note body structure.

Invoice cancellation

The Slovak PEPPOL network doesn't support a formal invoice cancellation process. To reverse a delivered invoice, issue a credit note (InvoiceTypeCode 381) referencing the original.