# FX-SCH-A-000117

Source: https://xmlvalid.com/rules/FX-SCH-A-000117

> An Invoice shall have the Sum of Invoice line net amount (BT-106).

- Level: error
- Rule sets: Factur-X BASIC rules 1.09
- Context: `//ram:SpecifiedTradeSettlementHeaderMonetarySummation`
- Test: `(ram:LineTotalAmount)`

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