In the fast-paced world of shipping, every package you send leaves a digital trail. On the surface, an invoice from a carrier like UPS or FedEx appears to be a simple bill for the work they did. However, if you look closer at the thousands of line items, you’ll find a mess of hidden shipping costs that can quietly eat away at your profits. For years, companies tried to fix this by hiring auditors to chase down refunds. But today, the shipping world has changed. Carriers are m