PEPPOL-T121-B03801
- Message
 Attribute 'schemeID' MUST be present.
- Context
 /ApplicationResponse/cac:ReceiverParty/cbc:EndpointID- Test
 @schemeID- Usage
 
Attribute 'schemeID' MUST be present.
/ApplicationResponse/cac:ReceiverParty/cbc:EndpointID@schemeID