BR-KSA-EN16931-07
Item net price (BT-146) must equal (Item Gross price (BT-148) - Allowance amount (BT-147)) when gross price is provided.
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.
cac:InvoiceLine/cac:Price/cac:AllowanceCharge/cbc:BaseAmount
xs:decimal(../../cbc:PriceAmount) = xs:decimal(.) - xs:decimal(../cbc:Amount)
Checked with Saudi Arabia ZATCA Tax Invoice (UBL), Saudi Arabia ZATCA Simplified Tax Invoice (UBL)