XRechnung 2.0.0 · UBLStored validation assertion
BR-28
XRechnung 2.0.0 · UBL
fatalbusiness
Original rule text
[BR-28]-The Item gross price (BT-148) shall NOT be negative.
(cac:Price/cac:AllowanceCharge/cbc:BaseAmount) >= 0 or not(exists(cac:Price/cac:AllowanceCharge/cbc:BaseAmount))