Validation message
[BR-30]-If both Invoice line period start date (BT-134) and Invoice line period end date (BT-135) are given then the Invoice line period end date (BT-135) shall be later or equal to the Invoice line period start date (BT-134).
Context
cac:InvoiceLine/cac:InvoicePeriod | cac:CreditNoteLine/cac:InvoicePeriod
//ram:SpecifiedLineTradeSettlement/ram:BillingSpecifiedPeriod
UBL
XPath
CII
XPath
Used in business terms