Hi Jacob, 

You can use below change client script which will work both onChange and onLoad :- Remove choices as per your requirement.:-  On Change of state

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
 if (isLoading || newValue === '') {
 if (g_form.getValue('state') == 1) {
 g_form.removeOption('state', '3');
 g_form.removeOption('state', '6');
 g_form.removeOption('state', '7');
 g_form.removeOption('state', '8');
 }
 return;
 }

//Type appropriate comment here, and begin script below
 if (newValue == 2) {
 g_form.addOption('state', '1','New',1);
 g_form.addOption('state', '2','In Progress',2);
 g_form.addOption('state', '3','On Hold',3);
 g_form.addOption('state', '6','Resolved',4);
 g_form.addOption('state', '7','Closed',5);
 g_form.addOption('state', '8','Canceled',6);
 }


}

Please mark my answer as helpful/correct if it resolves your query.

Regards,

Gunjan Kiratkar

Consultant - ServiceNow, Cloudaction

Rising Star 2022