@battk similar question here. I am trying to "reset" the shipping cost before submit by setting the quantity of the first item but after doing so, the getValue("shippingcost") is still the same as it was before the update. The reason I need to reset it I am adding additional fees and unless I reset it, the fees keep stacking on top of shipping cost + fees etc. Hope this makes sense. Is there a way to get a newly calculated shipping cost value on beforeSubmit with the same behavior in the UI where if quantity changes, the cost changes?