10 Types of Ecommerce Integrations for Growing Brands

As ecommerce businesses grow, so does the need for systems that work together seamlessly. That’s where ecommerce integrations come in. Whether you're fulfilling customer orders, managing inventory, or syncing data between platforms, the right integrations help automate and optimize your operations.

Let’s break down the different types of ecommerce integrations you should know—and how they all come together with the help of a trusted 3PL partner.

What Are Ecommerce Integrations?

Ecommerce integrations are connections between software platforms that allow data to be shared automatically. Instead of manually transferring information between your store, your inventory system, and your fulfillment provider, integrations handle that work in real time.

These connections reduce errors, speed up workflows, and allow for a more efficient and scalable operation.

Why are Ecommerce Integrations Important?

As your ecommerce business grows, connecting all your software systems becomes essential. Without the right integrations, you’ll end up wasting hours on manual tasks, risking data errors, and missing out on sales opportunities.

In fact, a 2024 Statista survey found that 68% of ecommerce businesses say seamless software integrations are critical to efficient growth.

From managing orders and inventory to syncing customer data and automating shipping, the right integrations are the backbone of a modern, scalable operation. This guide explains the 10 most important types of ecommerce integrations you need to know—plus how they work together to power high-growth brands.

1. Shopping Cart Integrations

What It Is:

Shopping cart integrations connect your online store directly to your fulfillment, inventory, and order management systems.

Why It Matters:

With these integrations, order, customer, and shipping data automatically flow to your 3PL or warehouse. This eliminates manual entry and ensures that orders are processed quickly and accurately. Shopping cart integrations also power real-time inventory updates, seamless returns, and up-to-date tracking for your customers.

Popular Examples:

Shopify, WooCommerce, BigCommerce, Wix, Squarespace, Magento, PrestaShop, Volusion, Shift4Shop

2. Marketplace Integrations

What It Is:

Marketplace integrations allow you to sync your operations with third-party selling platforms like Amazon, eBay, or Etsy. They keep product listings, stock levels, order information, and shipping updates in real time across all channels.

Why It Matters:

These integrations help prevent overselling and stockouts by updating inventory and order data everywhere you sell. They also make it easy to manage multiple platforms from one place and help expand your reach with less manual effort.

Popular Examples:

Amazon Seller Central, Walmart Marketplace, eBay, Etsy, Google Shopping, Wayfair, Rakuten, JOOR, OnBuy

3. OMS (Order Management System) Integrations

What It Is:

OMS integrations bring all your sales channels and fulfillment locations together into a single, central dashboard.

Why It Matters:

By centralizing your operations, OMS integrations enable real-time order routing, inventory balancing, and unified tracking. This is especially important for brands selling on multiple channels or with complex fulfillment needs.

Popular Examples:

Amazon Multi-Channel Fulfillment, ChannelAdvisor (Rithum), Cin7, Dear Systems, Pulse Commerce, TradeGecko, Teapplix

4. WMS (Warehouse Management System) Integrations

What It Is:

WMS integrations connect your warehouse software to ecommerce stores, marketplaces, and shipping providers.

Why It Matters:

These integrations optimize stock control, picking, packing, and shipping processes, which boosts efficiency and accuracy. WMS integrations are essential for scaling without losing control of inventory.

Popular Examples:

Core Warehouse, Deposco, Fishbowl, GoCadence, Infoplus, Logiwa, Korber, ShipHero, Snapfulfil, SphereWMS

5. ERP (Enterprise Resource Planning) Integrations

What It Is:

ERP integrations connect your ecommerce platform with accounting, inventory, and supply chain management systems.

Why It Matters:

This provides complete visibility across your finance, inventory, sales, and fulfillment operations—helping you reduce errors and make better business decisions.

Popular Examples:

NetSuite, SAP, Microsoft Dynamics, Xero, Katana, BlueCherry, ApparelMagic

6. CRM (Customer Relationship Management) Integrations

What It Is:

CRM integrations link your customer relationship tools to your ecommerce, inventory, and support systems.

Why It Matters:

They give you a 360-degree view of every customer by syncing orders, communications, and support issues. This allows for better marketing, more personalized service, and improved customer satisfaction.

Popular Examples:

Salesforce, Infusionsoft, QuickBooks Online, ByDesign Technologies

7. EDI (Electronic Data Interchange) Integrations

What It Is:

EDI integrations automate the exchange of business documents, such as purchase orders, invoices, and shipping notices, between you and your retail partners.

Why It Matters:

This automation is essential for B2B and wholesale, ensuring compliance with major retailers, reducing manual paperwork, and speeding up transactions.

Popular Examples:

SPS Commerce, DSCO, Integral Group, BlueCherry, CommerceHub

8. POS (Point of Sale) Integrations

What It Is:

POS integrations connect your in-store point-of-sale system to your ecommerce, inventory, and fulfillment platforms.

Why It Matters:

They enable true omnichannel sales, making sure that online and offline inventory, sales, and customer data are always synced—no matter where your customers shop.

Popular Examples:

Lightspeed Retail, Vend, Neto

9. Shipping Integrations

What It Is:

Shipping integrations connect your fulfillment operations with major shipping carriers and shipping software.

Why It Matters:

They automate rate shopping, label creation, and tracking updates, so you can ship orders faster and save money on shipping costs.

Popular Examples:

ShipStation, Shippo, Veeqo, UPS, FedEx, USPS, DHL

10. Data Transfer Integrations

What It Is:

Data transfer integrations automate the movement of order, inventory, or shipment data between systems, often using CSV, XML, or custom APIs.

Why It Matters:

They are ideal for legacy, custom, or non-standard systems where direct plug-and-play integrations aren’t available. These integrations keep your data connected and your operations running smoothly.

Popular Examples:

CSV Files over FTP, XML Files

Comparison Table: Ecommerce Integration Types

What to Consider When Choosing Ecommerce Integrations

Not all integrations are created equal. Before committing, consider the following to ensure your tech stack supports your long-term goals:

Scalability: Will the integration grow with your business as order volume, SKUs, and channels expand?


Flexibility & Customization: Do you need simple plug-and-play apps, or advanced API setups tailored to your workflow?


Onboarding & Support: Does your 3PL offer hands-on setup, data mapping, and responsive troubleshooting?


Tech Compatibility: Will the integration work smoothly with your existing systems—shopping carts, ERPs, and inventory tools?

How 3PL Center Helps with Ecommerce Integrations

How 3PL Center Makes Integrations Easy

At 3PL Center, we support over 100 different integrations—from shopping carts and marketplaces to advanced ERP and EDI systems. Our team takes the hassle out of connecting your tech stack, so you can scale faster and stay focused on your customers.

Here’s what sets us apart:

Seamless Onboarding:
Our integration specialists handle the entire setup process, from initial system mapping to testing and troubleshooting. We work closely with your team to ensure every integration—whether it’s Shopify, Amazon, or a custom ERP—works perfectly from day one.


Real-Time Syncing:
Orders, inventory, tracking numbers, and even returns are updated automatically across all your platforms. This means your inventory stays accurate, customers get real-time shipping updates, and you spend less time on manual data entry.


Retail & Omnichannel Fulfillment:
We support EDI and POS integrations for B2B and wholesale orders, helping you stay compliant with major retailers and streamlining replenishment. Our omnichannel fulfillment capabilities allow you to sell across DTC, marketplaces, and retail partners—while managing everything from a single dashboard.


Custom API Builds:
Need a special integration or want to connect a legacy system? Our developers can create custom API solutions tailored to your business, ensuring even the most unique workflows run smoothly.


Ongoing Expert Support:
Our team provides dedicated assistance for troubleshooting, system updates, and optimization, so your integrations and fulfillment always operate at peak performance.

Whether you’re scaling an omnichannel strategy, expanding into retail, or managing multiple sales platforms, 3PL Center’s integrations give you the flexibility and control to keep up with today’s fast-moving ecommerce landscape.

Why the Right Ecommerce Integrations Matter

The right integrations are the backbone of a scalable ecommerce operation. From syncing your store with your warehouse to ensuring retailer compliance, integrations keep everything moving smoothly behind the scenes.

Partnering with a 3PL like 3PL Center gives you access to 100+ integrations, expert support, and the technology you need to stay ahead in today’s fast-moving ecommerce world.

Ready to simplify your tech stack and scale smarter? Contact us to see how we can support your integrations.