I encountered a serious problem with one of the categories. I am engaged in sales on Yandex.Market and plan to expand to other marketplaces. It was quite difficult to evaluate my current sales on Yandex.Market to understand which marketplace to move to next, as analytical services do not always process Yandex.Market data correctly, and when they do, the quality is very poor. In SellerFox, I found suitable analytics. I am especially pleased with the option to order a custom report for large businesses. This helped me resolve my dilemma.