How to copy one Reference Field Value into another

[bammar]

Hello All,

This seems so easy on the surface but I have been unable to copy one Reference Field to another ( even the Eureka Actions tab doesnt let you do this when creating a business rule).   I have one reference field ( Approval For)   that has a value in it. I can pull the value and even display it as message. However I can not populate this value into another reference field ( Change Number)     leaving me to have to type it in. Both fields reference the the Change task list,   I would love it if someone could show us very simply how to extract from field A and input into field B.   I know reference fields rely on things like Display Values and sys_ids. I have tried every combination of methods and tried using   getDisplayValue()); to get the original Value and   g_form.setValue to   as well as scowering the wiki /community . Thank you in Advance, there are many applications for why anyone would need to do this , this is just one of them.

BR - After, on insert or update of approval form

findChange();

function findChange() {

  var ri = new GlideRecord("sysapproval_approver");

    ri.get('sys_id', current.sysapproval);

//this does display the correct value when I save the form.

  gs.addInfoMessage(current.sysapproval.getDisplayValue());

// trying to get an acceptable value for which I can pass into set the   destination field , this is unsuccessfull

var change =   current.sysapproval.getDisplayValue();

            g_form.setValue( 'u_change', change);

}

[williamsun]

I like to add the .sys_id to the source field like this:

current.u_change = current.sysapproval.sys_id;