Freight Matrix lets you:

• Define freight charge ranges for order totals or shipping weights
• Define custom shipping zones
• Define customer-specific freight charge options
• Automatically track the ship weight as items are added to/removed from the order
• Automatically update freight charge and order total based on freight charge amounts defined for the appropriate order total or weight range, shipping zone, and shipping method
• Compare shipping method costs during order entry with rate shopping functionality

All this is added to your Microsoft Dynamics GP system!