Message

Value MUST be part of code list 'Transport Service Code (openPEPPOL)'.

Context
/ubl:TransportExecutionPlanRequest/cac:MainTransportationService/cbc:TransportServiceCode
Test
(some $code in $clTransportServiceCode satisfies $code = normalize-space(text()))
Code lists
Transport Service Code (openPEPPOL)
Usage
/ ubl:TransportExecutionPlanRequest / cac:MainTransportationService / cbc:TransportServiceCode