XV-MY-35
The total net amount (LineExtensionAmount) is the sum of the lines' totals excluding tax: …, not ….
warning: reported, still valid
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:LegalMonetaryTotal
Test
not(cbc:LineExtensionAmount) or my:near($net, $lines)
Checked with MyInvois e-Invoice