# F-INV126

Source: https://xmlvalid.com/rules/F-INV126

> The sum of InvoiceLine/LineExtensionAmount ('…') elements must equal LegalMonetaryTotal/LineExtensionAmount ('…')

- Level: error
- Rule sets: OIOUBL 2.1 Invoice rules (Denmark) 1.17.2
- Context: `doc:Invoice/cac:LegalMonetaryTotal`
- Test: `((cbc:LineExtensionAmount - sum(../cac:InvoiceLine[not(cbc:FreeOfChargeIndicator) or cbc:FreeOfChargeIndicator = 'false']/cbc:LineExtensionAmount)) > 0.0055) or ((cbc:LineExtensionAmount - sum(../cac:InvoiceLine[not(cbc:FreeOfChargeIndicator) or cbc:FreeOfChargeIndicator = 'false']/cbc:LineExtensionAmount)) < -0.0055)`

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