5 Best ERP Shipping Add-Ons for Distributors in 2026

Distribution companies ship hundreds of orders a day. Every manual carrier lookup, re-keyed tracking number, or misrouted pallet chips away at your margin. An ERP shipping automation add-on connects your order entry, warehouse, and carrier network so the right shipment goes out at the right cost.

ERPVAR helps you evaluate the best ERP shipping add-ons by matching your carrier workflows, freight complexity, and integration requirements to the right tool.

This article compares five shipping automation add-ons built for distributors who run ERP systems like Acumatica, Sage 100, NetSuite, and Microsoft Dynamics 365 Business Central. You will find a quick guide, evaluation criteria, detailed reviews, and a comparison table to help you narrow your shortlist.

Quick guide: 5 best ERP shipping add-ons for distributors

1. StarShip: The best integrated shipping add-on for distributors with complex parcel and freight workflows
2. FreightPOP: Multi-modal TMS with connections to parcel, LTL, FTL, and ocean carriers
3. EasyPost: API-first shipping platform for high-volume label generation
4. Descartes ShipRush: Cloud-based multi-carrier shipping with accounting system connectors
5. ShipStation: Order fulfillment and label printing for ecommerce-heavy distribution

How we chose the best ERP shipping add-ons for distributors

Distributors deal with mixed freight modes, carrier-specific requirements, and back-office workflows that need to stay in sync with the ERP. We focused on the criteria that matter most when you are moving goods across parcel, LTL, and freight channels every day.

• ERP integration depth: Does the add-on pull orders directly from your ERP and write freight costs and tracking numbers back automatically? A two-way sync keeps your accounting and customer service teams working from accurate data.
• Multi-carrier and multi-mode support: Can you rate-shop across parcel, LTL, and freight carriers from one screen? Distributors who ship both small packages and palletized freight need a single workflow.
• Carrier compliance and documentation: Does the tool generate bills of lading, commercial invoices, and export compliance documents? Missing paperwork creates delays and penalties.
• Accounts receivable automation: Does freight cost data flow back to invoicing so your billing reflects actual shipping charges? This reduces disputes and shortens collections.
• Scalability for seasonal volume: Can the system handle peak-season spikes without adding manual steps or slowing down the warehouse?
• Reporting and visibility: Do you get dashboards and cost-per-shipment analytics that help you renegotiate carrier contracts and spot inefficiencies?

The 5 best ERP shipping add-ons for distributors

1. StarShip: Best overall ERP shipping add-on for distributors

ERPVAR connects distributors with StarShip integrated shipping software, which handles both parcel and LTL freight from one screen. StarShip pulls order and item data directly from your ERP, auto-populates the ship screen when you scan a pick sheet, and writes freight costs and tracking numbers back to the sales order for faster billing.

For distributors managing mixed shipments, StarShip uses Ship Via codes and weight thresholds to decide whether an order routes through parcel or freight carriers automatically. That logic removes a manual decision point from every shipment and reduces routing errors.

ERPVAR gives you access to certified ERP consultants who evaluate your carrier workflows and help configure StarShip to match your specific distribution operation. This combination of shipping software and expert guidance sets ERPVAR apart from tools that ship without implementation support.

StarShip features

• Turnkey ERP interfaces: Plug-and-play connectors for Acumatica, Sage 100, Microsoft Dynamics 365 Business Central, QuickBooks, and Macola pull orders into the shipping workflow with zero re-keying.
• Parcel and LTL from one UI: Rate-shop UPS, FedEx, USPS, DHL, regional carriers like OnTrac and Spee-Dee, plus dozens of LTL carriers. Package labels and bills of lading print from the same application.
• Automated accounts receivable updates: Freight costs and tracking data post back to the sales order as packages process, so your billing team invoices with accurate shipping charges.
• International shipping automation: Commercial invoices generate from ERP line-item data, and AES Direct integration reduces export compliance risk.
• Branded shipment notifications: Customized email alerts go out using the email address on the order, replacing generic carrier tracking emails with your company branding.
• Management dashboard: Front-office staff and managers get instant access to shipment history, cost metrics, and carrier performance reports without visiting the warehouse.

StarShip pros and cons

Pros:

• Two-way ERP integration automates data flow from order entry through billing, eliminating re-keying across departments
• Combined parcel and freight shipping in one interface removes the need for separate carrier portals
• ERPVAR's certified consultants help configure the tool to your distribution workflows, so you get implementation guidance alongside the software

Cons:

• The primary focus is on parcel and LTL carriers, so distributors with ocean or air freight needs may supplement with a separate tool for those modes
• Initial configuration of Ship Via rules and weight thresholds requires upfront planning to match your specific carrier contracts
  
  

2. FreightPOP: Multi-modal TMS for parcel through ocean freight

FreightPOP offers a cloud-based transportation management system that connects to parcel, LTL, FTL, air, ocean, and intermodal carriers. The platform integrates with a long list of ERP systems including NetSuite, SAP, Acumatica, Epicor, and Microsoft Dynamics 365 Business Central.

The standard integration imports order numbers, origin and destination details, product data, and shipment information from your ERP. It exports tracking numbers, freight charges, and carrier details back. FreightPOP also includes a carrier marketplace where you can compare rates from carriers you have not contracted with directly.

FreightPOP features

• Multi-modal rate shopping: Compare rates across parcel, LTL, FTL, air, and ocean carriers in one view before booking a shipment.
• Broad ERP connectors: Pre-built integrations with more than 25 ERP platforms, including multi-carrier configurations for Sage, Epicor, and SYSPRO.
• Carrier marketplace: Access additional carrier options and spot rates without separate contract negotiations.

FreightPOP pros and cons

Pros:

• Covers parcel through ocean freight, so distributors with international and domestic shipping can use one platform
• The carrier marketplace offers access to rates from carriers outside your current agreements
• ERP integration supports both import and export of shipment data fields

Cons:

• The number of integration options does not indicate how deep each connector goes, so you need to verify field-level sync with your specific ERP
• Pricing is quote-based with no published rate card, which makes comparison during evaluation more time-consuming
• The platform does not include warehouse management features, so pick-and-pack workflows require a separate tool

3. EasyPost: API-driven shipping for high-volume label generation

EasyPost is a multi-carrier shipping API that handles rate comparison, label creation, tracking, and shipping insurance. The platform connects with Acumatica and NetSuite through pre-built integrations and offers an open API for custom connections to other ERP systems.

EasyPost includes a free tier for up to 3,000 labels per month with wallet carriers, which makes it accessible for distributors testing API-based shipping. Higher-volume plans scale based on label count rather than per-user licensing.

EasyPost features

• Multi-carrier API: A single API endpoint connects to major parcel carriers for rate shopping, label generation, and tracking.
• Acumatica and NetSuite connectors: Pre-built integrations listed on the Acumatica Marketplace and available for NetSuite through partner implementations.
• Usage-based pricing: A free entry tier and volume-based plans allow you to scale shipping costs with actual shipment counts.

EasyPost pros and cons

Pros:

• The API-first approach gives development teams flexibility to build custom shipping workflows
• Pre-built Acumatica integration is listed on the official marketplace, which simplifies deployment
• The free tier allows testing before committing to a paid plan

Cons:

• The tool focuses on parcel shipping and does not include LTL or freight rate shopping, which limits coverage for distributors shipping pallets
• Custom API integration requires developer resources, so teams without in-house development capacity face higher implementation effort
• The platform does not write freight costs back to the ERP sales order automatically in every connector, so you may need middleware for full AR sync

4. Descartes ShipRush: Cloud multi-carrier shipping with accounting connectors

Descartes ShipRush is a cloud-based shipping platform that connects with NetSuite, QuickBooks, and several ecommerce platforms. The tool handles rate comparison, label printing, and tracking across UPS, FedEx, USPS, and DHL carriers.

ShipRush focuses on simplifying the label-printing workflow by pulling order data from connected systems and printing labels in batch. The accounting and CRM integration options target distributors who need shipping tied to invoicing and customer records.

Descartes ShipRush features

• Accounting system connectors: Integrations with NetSuite and QuickBooks pull order data and update shipment status in the accounting platform.
• Batch label printing: Process multiple shipments at once with batch label creation for high-volume days.
• Multi-carrier rate comparison: Compare rates across four major parcel carriers before selecting a service level.

Descartes ShipRush pros and cons

Pros:

• Accounting system integration ties shipping activity to invoicing and order records
• Batch label printing handles high-volume shipping days without processing one order at a time
• Cloud deployment means no on-premise infrastructure to maintain

Cons:

• The platform focuses on parcel carriers and does not include native LTL or freight carrier support
• ERP integration options are limited to NetSuite and QuickBooks, so distributors on Sage, Acumatica, or Dynamics need a different connector
• The tool does not include carrier-specific compliance document generation for international freight

5. ShipStation: Order fulfillment and labeling for ecommerce distribution

ShipStation is a multi-carrier shipping and order fulfillment platform used primarily by ecommerce sellers and distributors who process orders from online marketplaces. The tool integrates with NetSuite and QuickBooks Online, along with platforms like Shopify and Amazon.

ShipStation automates order imports from connected sales channels, applies shipping rules based on order attributes, and generates labels across carriers. The platform is built around ecommerce fulfillment, so distributors with B2B-heavy workflows may find the feature set oriented toward retail order processing.

ShipStation features

• Sales channel aggregation: Imports orders from marketplaces, ecommerce platforms, and ERP systems into one fulfillment queue.
• Automation rules: Assigns carriers, service levels, and package types based on order attributes like weight, destination, or SKU.
• Branded tracking pages: Custom tracking pages keep your brand visible during the delivery experience.

ShipStation pros and cons

Pros:

• Sales channel integrations consolidate orders from multiple marketplaces into one shipping queue
• Automation rules reduce manual carrier selection for repetitive order types
• Branded tracking pages offer visibility during last-mile delivery

Cons:

• The platform is oriented toward ecommerce and retail fulfillment, so B2B distribution features like bill of lading generation are not included
• ERP integration is limited to NetSuite and QuickBooks Online, leaving distributors on Sage or Dynamics without a direct connector
• The tool does not support LTL or freight carriers, which restricts coverage for distributors shipping palletized loads

Comparison table: The best ERP shipping add-ons for distributors

How do ERP shipping add-ons reduce freight costs for distributors?

ERP shipping add-ons reduce freight costs by automating carrier rate comparison at the moment of shipment. Instead of defaulting to a single carrier, the software shops your contracted rates across parcel and LTL options and selects the lowest-cost service that meets the delivery window.

Automated weight calculations and package dimensioning also help. When your system captures accurate dimensions from the order, you avoid paying for dimensional weight surcharges that come from estimated or rounded measurements.

According to a 2026 Pitney Bowes Parcel Shipping Index report, U.S. parcel volume continues to climb, which puts cost pressure on distributors who ship mixed loads. Automating carrier selection and freight auditing helps you recapture margin on every shipment.

What should distributors look for in ERP integration depth?

The first question is whether the add-on pulls order data directly from your ERP or requires a manual export. A direct connector reads sales orders, item details, ship-to addresses, and package dimensions from the ERP in real time.

The second question is what data flows back. A full two-way sync writes freight costs, carrier name, service level, and tracking numbers to the original sales order. This matters because your accounts receivable team needs actual shipping charges on the invoice, not estimates.

You should also verify whether the connector is maintained by the shipping vendor or by a third party. Vendor-maintained connectors typically receive updates when the ERP releases new versions, which reduces the risk of broken integrations during upgrades.

Why ERPVAR is the best ERP shipping add-on partner for distributors

ERPVAR connects you with StarShip integrated shipping software and pairs it with certified ERP consultants who understand distribution workflows. That combination means you get a shipping add-on configured to your carrier contracts, freight modes, and back-office processes instead of a generic out-of-the-box setup.

ERPVAR unifies your CRM, ecommerce, and shipping systems to streamline the order-to-cash cycle. Freight costs write back to the sales order automatically, so your billing reflects actual charges and your accounts receivable collections stay on track.

If you are evaluating shipping add-ons for your distribution ERP, ERPVAR can match you with a certified consultant who will assess your carrier workflows and recommend the right configuration for your operation.

FAQs about ERP shipping add-ons for distributors

What is an ERP shipping automation add-on?

An ERP shipping automation add-on is software that connects your enterprise resource planning (ERP) system to carrier networks. ERPVAR helps you select an add-on that automates rate shopping, label printing, and freight cost write-back so your warehouse ships faster with fewer errors.

Can ERP shipping add-ons handle both parcel and LTL freight?

Some add-ons support both parcel and LTL from one interface, while others focus on parcel only. ERPVAR connects distributors with StarShip, which handles parcel and LTL carriers in a single application, so you do not need separate tools for different freight modes.

How does a shipping add-on integrate with my ERP system?

Most shipping add-ons use pre-built connectors or APIs to pull order data from the ERP and push tracking and freight costs back. ERPVAR's consultants verify the integration depth for your specific ERP version to confirm that data flows both directions without manual intervention.

Do shipping add-ons support international compliance documentation?

Not all add-ons generate international documents like commercial invoices or AES filings. StarShip, available through ERPVAR, creates commercial invoices from ERP line-item data and integrates with AES Direct for export compliance.

How do I choose the right shipping add-on for my distribution company?

Start by listing the carriers you use, the freight modes you ship (parcel, LTL, freight), and the ERP system you run. Then evaluate each add-on against integration depth, carrier coverage, and back-office automation. ERPVAR offers a free ERP needs assessment to help you shortlist the right tool for your operation.