F-LIB315
Specifying the same TaxSubtotal.TaxCategory.ID in one TaxTotal class is not allowed
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.
OIOUBL 2.1 Invoice rules (Denmark) 1.17.2
OIOUBL 2.1 Credit Note rules (Denmark) 1.17.2
OIOUBL 2.1 Reminder rules (Denmark) 1.17.2
Test
$ID63 and cac:TaxCategory/cac:TaxScheme/cbc:ID = ./following-sibling::*/cac:TaxCategory/cac:TaxScheme/cbc:ID and cac:TaxCategory/cbc:ID = ./following-sibling::*/cac:TaxCategory/cbc:ID
Checked with Denmark OIOUBL 2.1 Invoice