If the subtotal promotions are active (for example 10% on 100, 20% on 250, etc) and we need to change product quantity in the order, does it have to recalculate cart promotion automaticly? or it is supposed to be done manually every time (with a checkbox active)?
As I see by default it always shows up stored discount ($cart.stored_subtotal_discount).
Is it possible to set it up as automatic update in a quick way?
ver. 2.2+ / 3