How come Amazon will say how many of a particular item sells each month and not on others that are very similar?
Not sure if there is another reason but a BSR will only be shown if there has been sales on that particular item.
Thank you for the response. I could see the sales rank suddenly disappear after Amazon’s automated change of browse nodes, it seems to be a common issue.
That is part of amazon manipulation of your sales.
Items that appear “popular” and have sold many are more likely to sell than an item that is not popular.
Every aspect of the online marketplaces that defies common sense and naturally occurring logic is part of their manipulation of your sales.