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9 The Best Order Management System Integrations in 2026

order management system integrations

Updated 17 August 2026 |

Order management system (OMS) integrations are vital for SaaS platforms managing multiple sales channels. As eCommerce continues to grow, OMS providers must ensure reliable connections with various marketplaces and shopping platforms to stay competitive. Moreover, these integrations help streamline processes, improving efficiency across platforms.

According to Statista, global eCommerce sales are projected to exceed $6.3 trillion in 2026. As a result, both order volumes and operational complexity are expected to increase significantly.

Why Order Management System Integrations Matter: Costs Customer Satisfaction

Additionally, research by the National Retail Federation highlights that adopting an order management system can reduce operational costs by up to 15% and improve customer satisfaction by 16% . Thus, OMS integrations not only improve operational efficiency but also enhance customer experience.

Key Functions of Order Management System Integrations

An order management system (OMS) streamlines the process of fulfilling orders for online stores and CRMs. In particular, it supports businesses with order follow-up, data entry, stock management, inventory control, and shipping logistics. As a result, OMS simplifies complex operations and ensures smooth order fulfillment.

Indeed, order management software provides essential functions that help businesses run smoothly. Below are some of the key features that OMS offers to improve efficiency:

1. What is Multichannel Order Processing?

OMS allows businesses to aggregate orders from all sales channels into a single, unified dashboard. Therefore, businesses can manage all orders from different platforms in one place, improving operational efficiency.

2. How Does Scalable Order Processing Work?

As retailers grow, OMS systems offer scalable features that adapt to increasing demands. In this way, OMS can handle more orders and support large businesses as they expand their operations.

3. How Does Order Tagging and Search Help?

Specifically, OMS software provides tools for quick search and categorization of orders across the entire database. This way, businesses can easily retrieve orders, improving accuracy and reducing time spent on order management.

4. Why Are Direct Integrations with Business Channels Important?

Direct integrations with business channels allow real-time updates to order statuses. Consequently, this enables businesses to streamline their processes across various platforms and ensures timely updates for customers.

5. What is Dropshipper Integration?

OMS can automate order fulfillment based on shipping method, channel, or facility. Thus, retailers can maximize efficiency and manage their order queues more effectively, improving overall processing speed.

The Most Important Order Management System Integrations

To unlock the full potential of your order management software, focusing on the right integrations is crucial. These integrations improve efficiency and provide added value to your customers.

Here are the 9 most important order management system integrations you should prioritize for 2025:

1. Why is ERP System Integration Important?

Specifically, integrating your OMS with ERP systems allows you to instantly update sales and stock information. As a result, you gain a clear view of your client's financials, which in turn improves decision-making and business management.

2. How Does Warehouse Management System Integration Help?

By connecting your OMS with warehouse management systems, you can manage inventory and stock levels in real-time. This, in turn, ensures clients never run out of products and improves fulfillment accuracy. Moreover, it minimizes the risk of errors in stock handling.

3. Why is Payment Gateway Integration Necessary?

Furthermore, payment gateway integration is essential for managing card transactions and processing third-party payments. As a result, this ensures smooth, secure, and accurate financial transactions, which, ultimately, helps maintain customer trust and satisfaction.

4. What Role Does Tax Services Integration Play?

To compute taxes based on purchase prices and customer delivery addresses, integrating with tax services is a must. By automating this process, you not only improve efficiency but also ensure that taxes are calculated accurately and promptly.

5. How Does POS System Integration Benefit Retailers?

Specifically, POS integrations allow retailers to manage inventories and cash payments at physical stores. As a result, this feature also makes online customer data available across different platforms, creating a more cohesive experience for the customer.

6. How Can PIM System Integration Improve Product Management?

Additionally, integrating with a PIM system helps manage product data effectively. It allows for the integration of images, videos, and descriptions, which, in turn, improves the conversion rate and enhances the overall shopping experience.

7. Why Integrate Email Software with OMS?

Similarly, email software integration ensures consistent communication with large clients. By automating order updates and notifications, this integration enhances the customer experience and builds brand consistency, making the process more efficient.

8. What is the Benefit of Parcel Adaptor Integration?

This integration helps calculate shipping costs accurately and ensures that orders are sent to the right carrier. Consequently, it helps eCommerce vendors offer fair prices for customers, which is vital for customer retention and satisfaction.

9. How Does Shopping Platform Integration Improve Operations?

Connecting your OMS with shopping platforms allows seamless data flow between e-stores and the OMS. This, in turn, simplifies operations and enables clients to generate personalized reports, ultimately improving their ability to make data-driven decisions.

API-Integration

How to Set Up Order Management System Integrations with Shopping Platforms

Overall, to expand your market size and build a larger customer base through 2026, it's essential to integrate your order management system (OMS) with various eCommerce platforms. In particular, such integrations are crucial because they enable your software to add, retrieve, delete, sync, and manage data for clients selling products online via e-stores.

To successfully connect your OMS with various shopping platforms, you must avoid the pitfalls of manual integration development. Fortunately, a reliable solution is to use a third-party service, such as API2Cart, which allows you to connect your software with over 80+ shopping platforms and marketplaces via a unified eCommerce API.

With API2Cart’s API methods, you can easily import orders from any sales channel, sync inventory management across platforms, create shipments, update order statuses, and generate personalized reports to track the situation on each sales channel.

Example Code for Retrieving Orders with order.list Method

Here is an example of how to retrieve orders from an eCommerce platform using API2Cart's unified API and the order.list method. For more details, you can refer to the official order.list method documentation.

Firstly, you can use the order.list method with the required parameters, such as the store ID, order status, and date range. This allows you to filter and retrieve only the orders that match your criteria. Moreover, the API response includes all relevant order details, such as order ID, total, customer name, and creation date.


{
  "return_code": 0,
  "return_message": "string",
  "pagination": {
    "previous": "string",
    "next": "string",
    "additional_fields": {},
    "custom_fields": {}
  },
  "result": {
    "orders_count": 0,
    "order": [
      {
        "id": "string",
        "order_id": "string",
        "basket_id": "string",
        "channel_id": "string",
        "customer": {
          "id": "string",
          "email": "string",
          "first_name": "string",
          "last_name": "string",
          "phone": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "create_at": {
          "value": "string",
          "format": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "currency": {
          "id": "string",
          "name": "string",
          "iso3": "string",
          "symbol_left": "string",
          "symbol_right": "string",
          "rate": 0,
          "avail": true,
          "default": true,
          "additional_fields": {},
          "custom_fields": {}
        },
        "shipping_address": {
          "id": "string",
          "type": "string",
          "first_name": "string",
          "last_name": "string",
          "postcode": "string",
          "address1": "string",
          "address2": "string",
          "phone": "string",
          "phone_mobile": "string",
          "city": "string",
          "country": {
            "code2": "string",
            "code3": "string",
            "name": "string",
            "additional_fields": {},
            "custom_fields": {}
          },
          "state": {
            "code": "string",
            "name": "string",
            "additional_fields": {},
            "custom_fields": {}
          },
          "company": "string",
          "fax": "string",
          "website": "string",
          "gender": "string",
          "region": "string",
          "default": true,
          "tax_id": "string",
          "identification_number": "string",
          "alias": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "billing_address": {
          "id": "string",
          "type": "string",
          "first_name": "string",
          "last_name": "string",
          "postcode": "string",
          "address1": "string",
          "address2": "string",
          "phone": "string",
          "phone_mobile": "string",
          "city": "string",
          "country": {
            "code2": "string",
            "code3": "string",
            "name": "string",
            "additional_fields": {},
            "custom_fields": {}
          },
          "state": {
            "code": "string",
            "name": "string",
            "additional_fields": {},
            "custom_fields": {}
          },
          "company": "string",
          "fax": "string",
          "website": "string",
          "gender": "string",
          "region": "string",
          "default": true,
          "tax_id": "string",
          "identification_number": "string",
          "alias": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "payment_method": {
          "name": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "shipping_method": {
          "name": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "shipping_methods": [
          {
            "name": "string",
            "additional_fields": {},
            "custom_fields": {}
          }
        ],
        "status": {
          "id": "string",
          "name": "string",
          "history": [
            {
              "id": "string",
              "name": "string",
              "modified_time": {
                "value": "string",
                "format": "string",
                "additional_fields": {},
                "custom_fields": {}
              },
              "notify": true,
              "comment": "string",
              "additional_fields": {},
              "custom_fields": {}
            }
          ],
          "refund_info": {
            "shipping": 0,
            "fee": 0,
            "tax": 0,
            "total_refunded": 0,
            "time": {
              "value": "string",
              "format": "string",
              "additional_fields": {},
              "custom_fields": {}
            },
            "comment": "string",
            "refunded_items": [
              {
                "product_id": "string",
                "variant_id": "string",
                "order_product_id": "string",
                "qty": 0,
                "refund": 0,
                "additional_fields": {},
                "custom_fields": {}
              }
            ],
            "additional_fields": {},
            "custom_fields": {}
          },
          "additional_fields": {},
          "custom_fields": {}
        },
        "totals": {
          "total": 0,
          "subtotal": 0,
          "shipping": 0,
          "tax": 0,
          "discount": 0,
          "additional_fields": {},
          "custom_fields": {}
        },
        "total": {
          "subtotal_ex_tax": 0,
          "wrapping_ex_tax": 0,
          "shipping_ex_tax": 0,
          "total_discount": 0,
          "total_tax": 0,
          "total": 0,
          "total_paid": 0,
          "additional_fields": {},
          "custom_fields": {}
        },
        "discounts": [
          {
            "code": "string",
            "value": 0,
            "type": "string",
            "additional_fields": {},
            "custom_fields": {}
          }
        ],
        "order_products": [
          {
            "product_id": "string",
            "order_product_id": "string",
            "model": "string",
            "name": "string",
            "price": 0,
            "price_inc_tax": 0,
            "quantity": 0,
            "discount_amount": 0,
            "total_price": 0,
            "tax_percent": 0,
            "tax_value": 0,
            "tax_value_after_discount": 0,
            "options": [
              {
                "option_id": "string",
                "name": "string",
                "value": "string",
                "price": 0,
                "weight": 0,
                "type": "string",
                "product_option_value_id": "string",
                "additional_fields": {},
                "custom_fields": {}
              }
            ],
            "variant_id": "string",
            "weight_unit": "string",
            "weight": 0,
            "barcode": "string",
            "parent_order_product_id": "string",
            "additional_fields": {},
            "custom_fields": {}
          }
        ],
        "bundles": [
          {
            "product_id": "string",
            "order_product_id": "string",
            "model": "string",
            "name": "string",
            "price": 0,
            "price_inc_tax": 0,
            "quantity": 0,
            "discount_amount": 0,
            "total_price": 0,
            "tax_percent": 0,
            "tax_value": 0,
            "tax_value_after_discount": 0,
            "options": [
              {
                "option_id": "string",
                "name": "string",
                "value": "string",
                "price": 0,
                "weight": 0,
                "type": "string",
                "product_option_value_id": "string",
                "additional_fields": {},
                "custom_fields": {}
              }
            ],
            "variant_id": "string",
            "weight_unit": "string",
            "weight": 0,
            "barcode": "string",
            "parent_order_product_id": "string",
            "additional_fields": {},
            "custom_fields": {}
          }
        ],
        "modified_at": {
          "value": "string",
          "format": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "finished_time": {
          "value": "string",
          "format": "string",
          "additional_fields": {},
          "custom_fields": {}
        },
        "comment": "string",
        "store_id": "string",
        "warehouses_ids": [
          "string"
        ],
        "refunds": [
          {
            "id": "string",
            "shipping": 0,
            "fee": 0,
            "tax": 0,
            "total": 0,
            "modified_time": {
              "value": "string",
              "format": "string",
              "additional_fields": {},
              "custom_fields": {}
            },
            "comment": "string",
            "items": [
              {
                "product_id": "string",
                "variant_id": "string",
                "order_product_id": "string",
                "qty": 0,
                "refund": 0,
                "additional_fields": {},
                "custom_fields": {}
              }
            ],
            "additional_fields": {},
            "custom_fields": {}
          }
        ],
        "gift_message": "string",
        "order_details_url": "string",
        "additional_fields": {},
        "custom_fields": {}
      }
    ],
    "additional_fields": {},
    "custom_fields": {}
  },
  "additional_fields": {},
  "custom_fields": {}
}

This example shows how to use the order.list method to retrieve completed orders within a specified date range from your store.

Conclusion

To get started, you need to Start a free trial and perform successful order management system integrations with eBay, Amazon, WooCommerce, X-Cart, Etsy, and 80+ other platforms. Then, you can add your customers' stores from any supported platform and start working with store data to optimize key processes and provide top order management solutions to your clients.

Frequently Asked Questions About Order Management System Integrations

What is an order management system integration?

An order management system integration connects your OMS with eCommerce platforms like Shopify, WooCommerce, or Magento to automatically sync orders, inventory, and customer data — eliminating manual data entry and reducing errors across all your sales channels.

Which eCommerce platforms support order management system integrations?

Most OMS solutions integrate with Shopify, WooCommerce, Magento, BigCommerce, Amazon, Etsy, TikTok Shop, and 80+ others. Using a unified API like API2Cart, you can connect all platforms through a single integration — without building separate connectors for each one.

How can order management systems pull orders from multiple platforms without building separate connectors?

Order management systems can easily pull orders from multiple sales channels using a unified API provided by API2Cart. This API allows you to connect to over 80+ shopping platforms and marketplaces simultaneously, enabling you to access and manage essential store data such as orders, products, and customers.

How long does it take to implement order management system integrations?

A direct integration with a single platform typically takes 4–8 weeks of development. Using a multi-connector API like API2Cart, you can set up order management system integrations with 80+ platforms in days — via a single unified API call, saving significant development time and resources.

What data is synchronized through order management system integrations?

Typically synchronized data includes: order status and history, customer information, shipping and tracking details, inventory levels, product SKUs, returns and refunds, and fulfillment updates — all in real time across every connected store and marketplace.

Guide focus: Order management integration comparison. After comparing systems, map the implementation with the order API integration foundation and the API2Cart methods for order management software.

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