# IS-R-001

Source: https://xmlvalid.com/rules/IS-R-001

> If seller is icelandic then invoice type should be 380 or 381 — Ef seljandi er íslenskur þá ætti gerð reiknings (BT-3) að vera sölureikningur (380) eða kreditreikningur (381).

- Level: warning
- Rule sets: Peppol BIS Billing 3.0 rules 3.0.21
- Context: `ubl-creditnote:CreditNote[$SupplierCountry = 'IS'] | ubl-invoice:Invoice[$SupplierCountry = 'IS']`
- Test: `( ( not(contains(normalize-space(cbc:InvoiceTypeCode),' ')) and contains( ' 380 381 ',concat(' ',normalize-space(cbc:InvoiceTypeCode),' ') ) ) ) or ( ( not(contains(normalize-space(cbc:CreditNoteTypeCode),' ')) and contains( ' 380 381 ',concat(' ',normalize-space(cbc:CreditNoteTypeCode),' ') ) ) )`

Validate a document against these rules: https://xmlvalid.com/validate