FX-SCH-A-000206
The Item net price (BT-146) shall NOT be negative.
error: the document is invalid
What the rule checks
As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.
Message
[BR-27] The Item net price (BT-146) shall NOT be negative.
Context
//ram:IncludedSupplyChainTradeLineItem
Test
(ram:SpecifiedLineTradeAgreement/ram:NetPriceProductTradePrice/ram:ChargeAmount) >= 0
Checked with Factur-X / ZUGFeRD BASIC