Product recommendation

A product recommendation is an algorithmically chosen set of items shown to a customer, based on their own behaviour, the behaviour of similar customers, or the attributes of whatever they are looking at. In lifecycle messaging it lifts revenue per send without extra creative work, since one template serves everyone. Two problems recur: cold start, where new customers and new products have no history, and stock, where recommending sold-out or already-bought items erodes trust faster than a generic block would.