# F-INV089

Source: https://xmlvalid.com/rules/F-INV089

> PromisedDeliveryPeriod class must be excluded

- Level: error
- Rule sets: OIOUBL 2.1 Invoice rules (Denmark) 1.17.2
- Context: `doc:Invoice/cac:Delivery`
- Test: `count(cac:PromisedDeliveryPeriod) = 0`

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