In Item information is 'Reverse charge', Type of goods or services must be there

In Item information (IBG-31) where Invoiced VAT category code (IBT-151) is 'Reverse charge', Type of goods or services (BTAE-09) must be there.

Fails when this is false

not(cac:ClassifiedTaxCategory/cbc:ID = "AE") or exists(cac:CommodityClassification/cbc:NatureCode)

The schematron test, verbatim. Context: cac:Item

Change the data so the statement above is true. Paste the invoice into the validator to see the exact element that fails.

Official · PINT AE (UAE) rules. Severity: error. Runs on UBL XML.