# FX-SCH-A-000253

Source: https://xmlvalid.com/rules/FX-SCH-A-000253

> An Invoice shall have at least one Invoice line (BG-25).

- Level: error
- Rule sets: Factur-X BASIC rules 1.09
- Context: `/rsm:CrossIndustryInvoice`
- Test: `//ram:IncludedSupplyChainTradeLineItem`

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