Hello all.
I'm trying to connect to a couple web services.
*https://celcer.sri.gob.ec/comprobantes-electronicos-ws/AutorizacionComprobantes?wsdl
*https://celcer.sri.gob.ec/comprobantes-electronicos-ws/RecepcionComprobantes?wsdl

I'm using this syntax

LOCAL lowikiwebservice AS "MSSOAP.SoapClient30"
LOCAL lowikiwebservice AS "XML Web Service"
loWSHandler = NEWOBJECT("WSHandler", IIF(VERSION(2) = 0, "", HOME() + "FFC\") + "_ws3client.vcx")
lowikiwebservice = loWSHandler.SetupClient("https://celcer.sri.gob.ec/comprobantes-electronicos-ws/RecepcionComprobantes?wsdl")

But i'm not getting the method I need to use.

If I try to register the web service in the toolbox I get an error: "Field COMFILE does not accept null values"

They also include these lines in their documentation:
@WebMethod
@WebResult(name = "RespuestaRecepcionComprobante")
public RespuestaSolicitud validarComprobante(@WebParam(name = "XML") byte [] XML)
But I don't know what it means.

Thank you in advance for your help.