# FX-SCH-A-000387

Source: https://xmlvalid.com/rules/FX-SCH-A-000387

> Element variant 'ram:TaxTotalAmount[@currencyID=/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:InvoiceCurrencyCode]' may occur at maximum 1 times.

- Level: error
- Rule sets: Factur-X EXTENDED rules 1.09.2
- Context: `/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation`
- Test: `count(ram:TaxTotalAmount[@currencyID=/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:InvoiceCurrencyCode])<=1`

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