You need to add transaction ZXF4 in your
system, as described in
www.synactive.com
-> Documentation
-> InputAssistant
-> Value help and matchcode for your own input fields
Transaction ZXF4, by the way, can be given another name
if you need to observe naming conventions for your own transaction codes.
In this case use
ProcessingOption SearchHelpTransaction="/XXXX/ZXF4"
in the session script to set a different transaction
name, /XXXX/ZXF4