• On catalog item view, when I set the requested for variable, my RITM's requested for shows as the user that submitted the catalog item
• setting my custom requested for variable in catalog item view, does not change it on the RITM when request is submitted

starting Istanbul

different type of carts [sc_cart]

Usually in this type of custom setup, we have a "requested for" variable along with a catalog client script in a variable set, that is responsible for updating the requested_for field of the user's cart. Example:

            //update the cart                       
            var cart = new GlideRecord('sc_cart');
            cart.addQuery('user', <sys_id_of_logged_in_user>);
            cart.query();
            if (cart.next()) {
                cart.requested_for = newValue;
                cart.update();
            }

The issue is that the user might have more than one cart, so a better query would be:

            //update the cart                       
            var cart = new GlideRecord('sc_cart');
            cart.addQuery('name', 'DEFAULT');            
            cart.addQuery('user', <sys_id_of_logged_in_user>);
            cart.query();
            if (cart.next()) {
                cart.requested_for = newValue;
                cart.update();
            }

In the query above we would want to obtain the DEFAULT cart only.