Web Service Login

Hi, I'm using XMLSpy to access the queryview web service.

When I send my SOAP message to the server I get an authentication error. (almost there!)

Any idea how I can log into this web service properly? The WSDL doesn't generate and fields for login...

Here is what I have:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<SOAP-ENV:Body>
		<m:GetQueryViewData xmlns:m="urn:sap-com:document:sap:soap:functions:mc-style">
			<Infoprovider>String</Infoprovider>
			<Parameter>
				<item>
					<Name>String</Name>
					<Value>String</Value>
				</item>
			</Parameter>
			<Query>String</Query>
			<ViewId>String</ViewId>
		</m:GetQueryViewData>
	</SOAP-ENV:Body>
</SOAP-ENV:Envelope>