Hi ajake01, no I did not try the other context variables.
I do not have access to environment as of now, so i can try them tomorrow & update you.
FYI ${request.parts.1.body} worked if I only use file in form-data.
If I add file & key value field in form-data as seen in my first post it is not working.
If you have any sample service please share, it would be of great help.
Thanks