Using flow designer to set field value via script

[JJG]

Hello,

I have a flow in flow designer and I would like to set the "Opened for" field to be set to the current value of the "Opened by" field. I have been using the following script but it doesn't seem to work:

Both the open_for & the open_by fields are reference fields to the user table, is that why this is not working? How should I fix this? Any help is appreciated.

[JJG · Accepted solution]

Solved: 

var shortDesc = fd_data.trigger.current.opened_by.getDisplayValue();

var desc ="New Hire Onboarding case for "+shortDesc;

return desc;

[nataliya_b]

have you tried to use script as below

var openFor = current.opened_by.toString(); //check for the field name as well

[JJG]

This does not seem to work