I am trying to access a web service that requires authentication. The code is as follows (I have removed the password, and can supply the contents of m.xmlData if required):

oSoap = CREATEOBJECT("MSSOAP.SoapClient30")
oSoap.MSSoapInit( "https://www.conveyancingportal.co.uk/conveyancingengine/services/instructionservice.asmx?WSDL", "InstructionService", "InstructionServiceSoap")
oSoap.ConnectorProperty("AuthName") = "REAPIT"
oSoap.ConnectorProperty("AuthPassword") = "xxxxx"
oSoap.Instruct(m.xmlData)

The line:

oSoap.ConnectorProperty("AuthName") = "REAPIT"

reports that the property is not recognized (despite documentation to the contrary). Any ideas?

Many thanks,

Dominic