fatalEN 16931EN 16931 business ruleCIIUBLBG-27BT-136
Each Invoice line allowance (BG-27) shall have an Invoice line allowance amount (BT-136).
An invoice line allowance (BG-27) has no amount (BT-136).
Add BT-136 as a positive number on the line's AllowanceCharge with ChargeIndicator false. Line allowances are already reflected in the line net amount BT-131 - do not subtract them again at document level.
CII — context $Invoice_line_allowances
(../ram:ActualAmount)
UBL — context $Invoice_line_allowances
exists(cbc:Amount)
Nothing is stored, and the whole invoice is checked, not just this rule. A PDF only works if it is Factur-X / ZUGFeRD — a PDF with the invoice XML inside it.