PEPPOL-T76-R003
Each order response line SHALL have a document line identifier that is unique within the order.
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:OrderLine/cac:LineItem
Test
count(key('k_lineId',cbc:ID)) = 1
Checked with Peppol Order Response