Invoice line net amount The total amount of the Invoice line (before tax). About ID IBT-131Cardinality 1..1Section SharedName Invoice line net amountSyntax binding ubl:Invoice / cac:InvoiceLine / cbc:LineExtensionAmountRules IBR-CL-03: currencyID MUST be coded using ISO code list 4217 alpha-3.IBR-126: All currencyID attributes must have the same value as the Invoice currency code (ibt-005), except for amounts expected to be in Tax accounting currency (ibt-006).