How to cancel RITM without populating mandatory variables?

[Al-JhonV]

My requirement is to create a UI action that will cancel a ticket from a custom Workspace.
But mandatory variables from onLoad script prevent the UI action to cancel the ticket.

Name: Cancel
action_name: cancel_compliance
Script:

var getChild = new GlideRecord('sc_req_item');

getChild.addActiveQuery();

getChild.addQuery('parent', current.sys_id);

getChild.query();

while (getChild.next()) {

    getChild.variables.link_to_parent_ticket = "";

    getChild.update();

}

current.state = '4';

current.stage = "Request Cancelled";

current.variables.link_to_parent_ticket = "";

current.update();

action.setRedirectURL(current);


Workspace script:

function onClick(g_form) {

g_form.submit('cancel_compliance');

}