# W-INV301

Source: https://xmlvalid.com/rules/W-INV301

> If used, use INCO terms (ID = 'INCOTERMS')

- Level: warning
- Rule sets: OIOUBL 2.1 Invoice rules (Denmark) 1.17.2
- Context: `doc:Invoice/cac:DeliveryTerms`
- Test: `cbc:ID and not(cbc:ID = 'Incoterms' or cbc:ID = 'INCOTERMS')`

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