SHIPPING & FULFILLMENT

Shipping & Fulfillment Integrations

Parts Square integrates your warehouses, vendors, carriers and shipping tools into one fulfillment brain—so your "Ships today" and "2-Day delivery" promises are actually true.

Talk to Us About Your Fulfillment Setup See All Integrations

Shipping That Matches the Promises on Your Site

Auto parts buyers care about speed, cost and reliability. You have vendors, warehouses, stores, and maybe 3PLs all shipping orders. Parts Square pulls that together: we know who can ship what, from where, by when, and we connect to the carriers and shipping platforms that make it happen.

SHIPPING NETWORK

Plug Into the Carriers and Shipping APIs You Already Use

We can integrate directly with carriers, multi-carrier platforms, and vendor shipping APIs

Carriers

  • UPS
  • FedEx
  • USPS
  • DHL and regional carriers

Shipping Platforms

  • ShipStation

    Import orders, buy labels, manage fulfillment

  • Shippo

    Multi-carrier API and dashboard

  • EasyPost

    AI-assisted multi-carrier API

  • ShipEngine

    200+ carriers for labels & tracking

Vendor Shipping APIs

  • Turn 14
  • Keystone
  • Meyer
  • Motor State
  • WorldPac & more

We can also connect to 3PLs or custom shipping systems you already have in place.

DATA-DRIVEN PROMISES

We Only Promise What Your Vendors and Warehouses Can Deliver

Because Parts Square already knows where inventory is and what your SLAs are

Inventory-Aware Shipping

Because We Know:

Which vendors/warehouses have stock
Where that stock is located geographically
Your same-day / next-day / 2-Day / 3-Day rules
We Can:
  • Mark items as eligible for same-day or next-day based on actual cutoffs
  • Feed capabilities into your site badges and Google Merchant Center
  • Route orders to sources that hit the SLA and protect your margin

Your shipping promises stop being guesses and start being data-driven.

INTELLIGENT RATE CALCULATION

Built-In Shipping Calculation Engine

We calculate accurate carrier rates automatically – no third-party platform required

Shipping Calculation

We Know Everything Needed to Calculate Rates

Origin Location

We know where the vendor/warehouse is shipping from

Destination

We know where the order is being delivered

Package Details

We have dimensions, weights, and calculate dim weights automatically

Carrier APIs

We look up real rates via UPS, FedEx, and other carrier APIs

Granular Control Over Shipping Costs

With all this data, we calculate the actual carrier cost – then you can dial in adjustments at multiple levels:

Per Vendor

Different markups/discounts for different vendors

Per Brand

Subsidize shipping on high-margin brands

Per Part Type

Custom rules for specific product categories

No Third-Party Platform Required

If you don't want to use vendor shipping APIs or platforms like ShipStation, you don't have to. Parts Square has built-in shipping calculation that gives you accurate carrier rates and complete control over your shipping strategy.

LOCAL OPTIONS

Local Pickup and Delivery Without Duct Tape

If you sell into a local or regional market, Parts Square can:

Store Pickup

Offer store pickup where you have physical locations or WD counters backing your brand

Local Delivery

With rules by postal code, radius, order size, vendor, or warehouse

Product Restrictions

Limit certain products (engines, big & heavy, hazmat) to local options only

Google Local Inventory

Reflect options in checkout, shipping quotes, and Google local inventory feeds

All of this is wired into the same vendor and warehouse engine you defined on the Vendors & WDs side.

RATE OPTIMIZATION

Right Carrier, Right Service, Right Cost

By integrating with multi-carrier shipping APIs

Compare Rates & Transit Times

Across carriers and services

Select Based on Cost + SLA

Cheapest method that still arrives in two days

Generate Labels Automatically

Once an order is allocated to a vendor or warehouse

Branded Tracking Links

Provide tracking numbers and links back to customers and marketplaces

You keep your carrier contracts and shipping platforms — you just let Parts Square feed them better data and rules.

Rate Shopping
VENDOR FREIGHT INTELLIGENCE

Vendor Shipping APIs & Controllable Markups

Real-time freight calculations directly from your warehouse distributors

Beyond Generic Carrier Rates

In addition to carrier and multi-carrier APIs, Parts Square can also pull shipping rates directly from many vendor and warehouse distributor APIs. Vendors such as Turn 14, Keystone, Meyer, Motor State, WorldPac and others expose real-time freight calculations through their APIs, and we tap into those whenever possible.

Actual Vendor-Calculated Rates

Your checkout isn't guessing at freight for dropship orders – it's using actual vendor-calculated rates based on the products in the cart, the ship-to address, and the shipping method selected.

Vendor Shipping APIs

How You Can Monetize Vendor Freight:

Pass Through at Cost

Vendor freight with no markup

Configurable Markup

Percentage or flat to cover handling

Apply Markdown

Aggressive shipping for key products

Different Rules

By channel, store, customer or cart value

The result: Accurate, vendor-aware shipping quotes that protect your margin without surprising your customers – and without you having to hard-code tables that go stale the moment a vendor updates their rates.

DISTRIBUTED FULFILLMENT

Dropship and 3PL Orders Without Manual Chaos

For dropship or 3PL-fulfilled orders, Parts Square can:

Send Order Details

To vendors via API, file, EDI or portal-ready formats

Receive Tracking & Invoices

Back into your system automatically

Update Order Status

In your storefront and marketplaces

Respect Vendor Schedules

Cutoffs, blackout dates, and freight programs

You get all the benefits of distributed fulfillment without constantly logging into separate systems.

RETURNS MANAGEMENT

Returns, RMAs and Exceptions Stay in One Place

Because we sit in the middle:

Initiate Returns

Inside Parts Square for all channels

Push to Gateways

Updates to payment gateways and channels

Set Return Rules

Who receives (your warehouse vs vendor vs 3PL)

Track Lifecycle

See what's happened with each order

The customer sees a consistent, professional experience; internally, you have clear accountability.

SHIPPING PARTNERS

Carriers & Platforms We Connect

UPS
UPS
FedEx
FedEx
USPS
USPS
DHL
DHL
ShipStation
ShipStation
Shippo
Shippo
EasyPost
EasyPost
ShipEngine
ShipEngine

Parts Square connects your vendors, warehouses and carriers into one shipping brain — so you don't have to be a logistics engineer to keep your promises.

Fulfillment That Matches the Complexity of Auto Parts

Auto parts shipping is hard: odd sizes, heavy boxes, multiple vendors, strict SLAs, and picky customers. Parts Square brings order to that chaos by tying together your catalog, vendor network and shipping stack—so every order is routed, packed, shipped and tracked in a way that protects both customer experience and margin.

Talk to an Auto Parts Ecommerce Expert

Tell us where your business is today and where you want it to go. We’ll show you how Parts Square can connect your vendors, catalog data, and storefront into one system.

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Simple Pricing for serious sellers
Starting at $745 USD /mo
+ 2% of sales · No hidden fees
Volume discounts available
1
Book a Demo We’ll review your business and schedule a quick call to walk you through the Parts Square platform.
2
Get Your Custom Plan We’ll map out your vendors, data sources, and launch timeline so you know exactly what’s involved.
3
Launch in as little as 30 days Done-for-you setup and onboarding with dedicated support.
Done-for-you onboarding & data migration
2,000+ brands pre-integrated
Connect to major warehouse distributors
Clear, transparent terms