# BR-DEX-02

Source: https://xmlvalid.com/rules/BR-DEX-02

> Der Wert von "Invoice line net amount" (BT-131) einer "INVOICE LINE" (BG-25) oder einer "SUB INVOICE LINE" (BG-DEX-01) soll der Summe der "Invoice line net amount" (BT-131) der direkt darunterliegenden "SUB INVOICE LINE" (BG-DEX-01) entsprechen.

- Level: warning
- Rule sets: XRechnung 3.0 rules (UBL) 2.6.0
- Context: `/ubl:Invoice[$isExtension]`
- Test: `(every $invoiceline in /ubl:Invoice/cac:InvoiceLine[ exists (./cac:SubInvoiceLine) ] satisfies $invoiceline/xs:decimal(cbc:LineExtensionAmount) = sum($invoiceline/cac:SubInvoiceLine/xs:decimal(cbc:LineExtensionAmount))) and (count( //cac:SubInvoiceLine [count(cac:SubInvoiceLine) > 0 and xs:decimal(cbc:LineExtensionAmount) = sum(cac:SubInvoiceLine/xs:decimal(cbc:LineExtensionAmount))]) = count(//cac:SubInvoiceLine [count(cac:SubInvoiceLine) > 0]))`

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