What is the Service Context ID in the IiopBeginServiceContext function used for and does it need to be unique for each virtual user ?
There are a number of service context ids that are defined in the CORBA standard.
These ids may be used by any orb vendor, however each pre-defined id may contain information in a specific format (e.g. id 6 specifies transaction information, id 1 specifies information about code sets supported by the orbs and so on).
Each orb vendor has its own unique Context ID for transmitting custom information between the server and client orbs.
If the example below this vendors Context ID is 14422562255.
This unique id should remain in the script as recorded and does not need to be dynamic for each virtual user.