XV-SA-11

The total with VAT in the QR code (tag 4, …) is neither the invoice's TaxInclusiveAmount (…) nor, after prepayments, its PayableAmount (…).

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.

Context
/*/cac:AdditionalDocumentReference[cbc:ID = 'QR']
Test
not($readable) or $fields[5] = '' or empty($total) or sa:dec($fields[5]) = ($total, $payable)

Checked with Saudi Arabia ZATCA Tax Invoice (UBL), Saudi Arabia ZATCA Simplified Tax Invoice (UBL)