Changing dependent field value using Catalog client script

[vidhya_mouli]

I have these variables on my catalog item:

application_service is on cmdb_ci_service table.

support_group is on sys_user_group table

When application_service changes I want support_group to change automatically.

This is my catalog client script:

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

   var supportGroup = ''; 
    var cmdbCiService = new GlideRecord('cmdb_ci_service');
    cmdbCiService.addQuery('sys_id', newValue);
    cmdbCiService.query();

	g_form.addInfoMessage("OUSIDE: "+newValue);
	if (cmdbCiService.next()) {
		supportGroup = cmdbCiService.getValue('support_group');
        g_form.addInfoMessage("Support: " + supportGroup);
    }
	g_form.setValue("variables.support_group", supportGroup);
}

I am able to fetch the sys_id correctly but not able to set the value. How can I do this?

[SANDEEP28 · Accepted solution]

@vidhya_mouli This can be done without scripting. Open the "Support group" variable and go to "Auto populate" section. 

In dependent question, select Application service and "Sys ID" in dot walk path field.

If I could help you with your Query then, please hit the Thumb Icon and mark as Correct !!

[Dr Atul G- LNG]

Hi @vidhya_mouli 

I missed out this question , but proud you accepted the right answer and OOTB. 

Thanks @Pavankumar_1