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Client 800 is not available in this system

I am using SAP.Net Connector 3.0 through GUI I am able to connect to SAP Server easily, but when I am trying to connect through SAP .Net Connector using Visual Studio I am getting Client 800 is not available in this system at

  Dim param As New RfcConfigParameters()

        param.Add(RfcConfigParameters.AppServerHost, AppServerHost)

        param.Add(RfcConfigParameters.Client, Client)

        param.Add(RfcConfigParameters.User, Username)

        param.Add(RfcConfigParameters.Password, Password)

        param.Add(RfcConfigParameters.Language, "EN")

        param.Add(RfcConfigParameters.MaxPoolSize, "5")

        param.Add(RfcConfigParameters.PoolSize, "10")

        param.Add(RfcConfigParameters.Name, "WO")

        'param.Add(RfcConfigParameters.SystemID, SystemID)

        'param.Add(RfcConfigParameters.AbapDebug, "TRUE")

        Dim destination As RfcDestination = RfcDestinationManager.GetDestination(param)

        Dim func As IRfcFunction = Nothing


'' Eror is coming on this line

func = destination.Repository.CreateFunction("BAPI_PO_GETDETAIL")

I checked client SCC4 the client is available

Error.jpg (251888 B)
settings.jpg (174612 B)
Former Member
Former Member replied

Did you specify the right SystemNumber?

parms.Add(RfcConfigParameters.SystemNumber, "XX")

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