Excessive defectives usually don’t look like a major problem at first. A few returns come through. A few claims appear. A handful of clubs report damages, missing pieces, packaging problems, or member complaints. The supplier may assume it’s a normal activity for a high-volume item. Then the dollars start adding up. That’s the club channel trap. At Sam’s Club, Costco, and BJ’s, defective claims can become a major margin issue because selling units are larger, programs move fa