In logistics operations, users sometimes experience a price difference between the estimated cost at the time of order creation and the final cost after the package is processed by the courier. This change is known as a Shipping Surcharge/Adjustment.
This price adjustment is made by the courier based on the actual condition of the package upon arrival at the sorting warehouse. This article aims to help you understand the factors causing these price changes so you can minimize additional costs in the future.
This article will help you understand:
- Causes of package weight differences
- What volumetric (dimensional) weight is
- Courier Surcharge Fees (Additional Costs)
- How to avoid price changes
- Price difference billing process
- Price updates via Biteship API
1. Scale Weight Differences (Dead Weight)
The most common cause is a difference in scale measurements between the sender and the courier. This often happens due to uncalibrated scales or the addition of packing materials (bubble wrap, cardboard, wood) that were not accounted for during the initial order input.
2. Volumetric Weight (Dimensional) Calculation
Couriers also calculate volumetric weight for packages that are large but light. If the volumetric weight is greater than the physical weight, the price will be adjusted. The formula used is:
(Length x Width x Height) / 6000 = Volumetric Weight (kg)
3. Surcharge Fees (Additional Costs)
Besides weight differences, some couriers charge additional fees (Surcharges) for certain shipping categories such as dangerous goods, high-value items, or packages with extreme weight (Overweight).
Each courier has different surcharge percentage policies. To see the complete details of surcharge fees from each courier, please visit the following link: Click here to view Courier Surcharge Fees.
4. How to Avoid Price Changes
To keep your billing consistent with the initial estimate, follow these tips:
- Data Accuracy: Weigh and measure the package dimensions after packing is complete (ready to ship).
- Use a Digital Scale: Avoid manual scales to minimize inaccurate weight differences.
- Pay Attention to Rounding: Understand each courier’s weight rounding rules.
5. Price Difference Billing Process
If a price difference occurs after the package is processed by the courier, Biteship will make the following adjustments:
- Balance Deduction: The cost difference will be automatically debited from your account balance.
- Additional Invoice: For corporate accounts, the difference will appear on the periodic invoice as an adjustment item.
6. FAQ (Frequently Asked Questions)
1. Why is the weight on the receipt different from my scale?
This can be caused by differences in scale calibration or the courier using volumetric weight calculation if the package is large.
2. Can I file a complaint about the price difference?
Yes. Please contact the support team by attaching a photo of the package on a digital scale along with proof of its dimensions.
3. Can the price change to be cheaper?
Generally, the system adjusts for underpayments. Downward adjustments (refunds) depend on the validation policy of each courier.
4. When is the balance deduction made?
The balance deduction is made automatically as soon as the courier updates the actual weight data in the system or when the package status changes.
5. How do I update prices systematically if I use the Biteship API?
For API users, you can use the Webhook type order.price to receive automatic price updates. The technical guide can be found at: Biteship Webhook Documentation.
7. Conclusion
Price changes in shipping are normal in logistics due to adjustments based on the physical condition of the package in the field. By performing accurate measurements and monitoring courier surcharge policies, you can better manage your operational costs.
If you encounter any issues, please contact the Biteship support team at support@biteship.com.