Solved: XML does not comply with UBL 2.1 standards in line with ZATCA specifications

A Chilkat customer is getting this error when trying to validate the signed invoice on the ZATCA XML online validator (Sandbox) category : XSD_SCHEMA_ERROR code :SAXParseException message : Schema validation failed; XML does not comply with UBL 2.1 standards in line with ZATCA specifications The solution is to examine the XML using the UBL 2.1 validation tool at https://joinup.ec.europa.eu/collection/interoperability-test-bed-repository/solution/ubl-21-e-invoice-validation-service/about and […]