ATF - How to pass the Previous Step in the Run server-side script for CAB approval.

[BalajiG48791808]

Hi, I am trying to pass the previous step in the sys id (Insert record) in the Run server-side script step. I am writing the script to Approve 60% of approvers in the CAB approval of change request to move next phase.  Help me out its Urgent!

Error: 

Test failed due to JavaScript error executing step:
java.lang.IllegalArgumentException: Step id 3 is not valid

Full logging from step execution:
09:11:22.858 Loading script: jasmine_lib/jasmine31.js
09:11:23.251 Successfully loaded jasmine_lib/jasmine31.js


code:

(function(outputs, steps, params, stepResult, assertEqual) {

    var changeSysId = steps(3).record_id + '';

    var approvals = new GlideRecord('sysapproval_approver');

    var qc = approvals.addQuery('sysapproval', changeSysId);

    qc.addOrCondition('document_id', changeSysId);

    approvals.addQuery('state', 'requested');

    approvals.orderBy('sys_created_on');

    approvals.query();

    var total = approvals.getRowCount();

    var required = Math.ceil(total * 0.60);

    var count = 0;

    approvals.query();

    while (approvals.next()) {

        approvals.state = 'approved';

        approvals.update();

        count++;

        if (count >= required) {

            break;

        }

    }

    stepResult.setSuccess();

    return true;

})(outputs, steps, params, stepResult, assertEqual);