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Integrating LTL Carriers for Custom Freight Calculations

Why B2B companies integrate multiple LTL and other carriers into their eCommerce sites, the common LTL shipping problems and mistakes, the benefits of carrier integration with custom freight calculations, and how a robust platform keeps up with shipping trends.

Updated November 3, 2026

Common Shipping Problems for B2B Companies

Both B2B and B2C companies need to ship their products efficiently, provide ways for customers to track their orders, and provide multiple shipping strategies so that customers can choose shipping methods based on budgetary concerns, speed of deliveries, and other factors such as climate control. Offering only one or two standard shipping methods is too risky. These carriers are often viewed as company agents, and if a carrier messes up the delivery, customers will blame the eCommerce company even if it didn’t cause the problem.

That’s why it’s increasingly important to integrate multiple third-party carriers on a company’s eCommerce website. Customers can choose their carriers and connect with each shipper directly. If something goes wrong, customers know that the carrier they chose is at fault and not the eCommerce company.

Clarity has been building platforms with integrated B2B shipping carriers for years and knows all the problems and opportunities that development can generate. Handling LTL carrier integration for multiple shipping methods can be expensive, but Clarity has perfected the process by handling many carrier integrations and out-of-the-box custom freight calculations. That means faster development, fewer problems to troubleshoot, lower prices, and experience with working out the bugs.

Common Shipping Problems for B2B Companies

LTL, or less-than-truckload, shipments often cause shipper frustration because of poor communications. Some of the general problems of LTL management include: [1]

According to one expert, five common shipping mistakes that shippers make include: [2]

1. Estimating Weight Incorrectly

Estimating weight--especially for large B2B orders--can generate disastrous errors. With an integrated site and a direct connection, customers don’t need to estimate sizes and weights but can get accurate, real-time information.

2. Concentrating on the Lowest Price

The price of shipping is just one thing to consider. There are also tariffs, discounts, accessorial charges, fuel charges, and FAK issues to consider. FAK, or freight of all kinds, is how different types of goods are separated into categories that ship at the same rate.

3. Neglecting Freight Brokers

Freight brokers can often negotiate better deals based on the empty trucks that are available. Brokers can often find big savings or better service, based on a company’s shipping needs.

4. Failing to Insure Freight

Anything can happen when shipping products. It’s important to limit risk by insuring big or expensive shipments.

5. Lacking the Right Software and/or Software integration

Software and integration can automate and consolidate all LTL needs and help to optimize loads, provide easier tracking, schedule logistics, and storage if needed, and manage other aspects of shipping and managing the supply chain.

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Benefits of LTL Carrier integration

CRM software can be customized during the integration process to manage the smallest shipments, the largest orders, and any in-between, which are the most common for a B2B shipment. Integrating with LTL and other carriers enables customers to connect directly with shippers while they have accurate specs, weights, and sizes in front of them. integration reduces errors, speeds up scheduling deliveries, and shifts responsibility for shipments directly to the carriers. Other benefits of carrier integration include:

Increased Sales

Lower Shipping Costs

Better Logistics

Automated Routing

Improved User Experiences

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