The algorithm takes time to kick in, but how much time varies. There's a lot of guess work, but it seems like the more sales you have the faster also bought items show up. My latest pre-order received the first batch in four days, and the list grew quickly after that.
Reviews have nothing to do with also bought items, only how many people purchased the same item. The list is sorted by relevance. So if 75 people bought book 1 and book 2, then book 2 would appear higher on the also bought items for book 1 than anything that had fewer common purchases.
Does that make sense? I'm not sure if I explained that very well.
Reviews have nothing to do with also bought items, only how many people purchased the same item. The list is sorted by relevance. So if 75 people bought book 1 and book 2, then book 2 would appear higher on the also bought items for book 1 than anything that had fewer common purchases.
Does that make sense? I'm not sure if I explained that very well.