Message

Value MUST be part of code list 'Document name code, full list (UNCL1001)'.

Context
/ubl:TransportExecutionPlanRequest/cac:AdditionalDocumentReference/cbc:DocumentTypeCode
Test
(some $code in $clUNCL1001 satisfies $code = normalize-space(text()))
Code lists
Document name code, full list (UNCL1001)
Usage
/ ubl:TransportExecutionPlanRequest / cac:AdditionalDocumentReference / cbc:DocumentTypeCode