Reasons for the discrepancy between product sales and SKU sales statistics:
1. The prerequisites for SKU sales statistics are: (1) the order has been shipped(ship via 4Seller)(2) the system has opened shipping minus (3) if it is a split order, the statistics must be counted after the entire order (all packages) has been shipped.
2. Products Sales Including all products' orrder status: "to ship", “In Process", "Shipped", "Void", etc.
The statistical logic for these two methods is different, therefore the data presentation will differ.