Rules / IBR-052
IBR-052 error
Each Additional supporting document
Each Additional supporting document (ibg-24) must contain a Supporting document reference (ibt-122).
Fails when this is false
(normalize-space(cbc:ID)) != ''The schematron test, verbatim. Context: cac:AdditionalDocumentReference
Fix
Change the data so the statement above is true. Paste the invoice into the validator to see the exact element that fails.