gs.getSessionID() is throwing an error

[Madhan007]

var sessionID = sn_fd.GlideActionUtil.setEncryptedOutput(util.getSessionId());

    if (typeof sessionID === 'string' && sessionID == '') {

        throw new Error("Invalid Connection & Credential Alias.");

    } else {

        outputs.session_id = sessionID;

    }
The above lines of code are used in a script step in a Data stream.
If the session ID is empty, we are throwing an error. why would be the session ID be empty when the subflow runs as system and how can we resolve it ?

Thanks in Advance !!

[Brad Bowman]

Would need to see the entire script.  Is util defined?

[Ankur Bawiskar]

@Madhan007 

what's your business requirement?

where is this script written

some screenshots

[Madhan007]

@Ankur Bawiskar , @Brad Bowman  , Thanks for your Reply

We are using this in a flow designer Data stream

[Ankur Bawiskar]

@Madhan007 

we don't know what input you are passing to that function