Parameter settings for Siebel Web services applications

[CR #442320] When building Siebel Web services applications, if you enter nothing for some input parameters/nodes, these parameters/nodes are removed from the request sent to the Web Services server. In some cases, this is fine.

Workaround: To send the node with an empty value, enter "_0_" as the input value instead of leaving it blank. This enables the empty node to be sent to the Web Services server.