How Does EDI Work in eCommerce? A Complete Guide for Online Sellers
Key Takeaways:
- EDI is required by major marketplaces (Amazon, Walmart, Target, etc.) to exchange orders, invoices, and shipping details—being EDI capable and EDI compliant is often mandatory.
- EDI by itself is just a standardized system with different data formats, but EDI integration connects those documents to your ERP and eCommerce platform(s) so everything flows automatically.
- EDI integration is critical for eliminating manual data entry, reducing costly errors, speeding up order processing, and ensuring inventory stays in sync across channels.
- Choosing the right EDI software matters: you have options from web portals (for small volumes), ERP/eCommerce connectors, VANs, 3PL-provided EDI, or fully managed cloud platforms.
What is EDI?
If you’re a brand expanding into eCommerce and online marketplaces, the expectation for fast and accurate Electronic Data Interchange (EDI) order fulfillment processes is only growing. In eCommerce, EDI is the standardized format marketplaces and retailers use to exchange orders, invoices, and shipping information with partners on their platforms. Many major retailers and online marketplaces won’t work with you unless you’re EDI capable and EDI compliant, which for many businesses necessitates a cloud-EDI software.
In this guide, we’ll cover exactly how eCommerce EDI works in the case of a typical Amazon seller, step by step, and explain why choosing the right EDI solution is essential for modern eCommerce brands using EDI transactions.
Prepare the Data
The process begins with gathering and organizing the information that will be exchanged—purchase orders, invoices, shipping notices, and more. To make sure trading partners can interpret this data, it must be structured according to EDI standards.
- Collecting information: Pull details such as product SKUs, pricing, quantities, shipping addresses, and customer data from systems like your ERP or order management software.
- Formatting the data: Map those fields into a recognized EDI standard (ANSI X12, EDIFACT, etc.), ensuring every required element is present and properly aligned.
- Validating accuracy: Run checks to confirm that nothing is missing, fields are consistent, and the file conforms to the standards expected by your trading partner.
Send the Data
Once formatted, the documents must reach your trading partner securely. There are several common approaches:
- Direct system connections: A dedicated, secure link (often via AS2) allows immediate and reliable document exchange.
- Value-Added Networks (VANs): A VAN is a third party that sits in the middle, handling secure delivery along with extras like data translation, monitoring, and archiving.
- Cloud and web-based platforms: Many businesses opt for cloud EDI providers, which offer browser-based web EDI access, built-in compliance, and easy connectivity without the heavy technical lift.
Validate on Receipt
When the partner receives your EDI document, their system runs its own validation before accepting it into production.
- Syntax checks: Ensures the message structure and codes line up with the chosen EDI standard.
- Business rule checks: Verifies things like product codes, pricing, and shipping details against the partner’s specific requirements.
- Error handling: Any mistakes are flagged, and the sender is alerted so corrections can be made quickly.
Integrate Data with Business Systems
After the documents pass validation, they’re pushed into the recipient’s business applications, which allows the data to flow into day-to-day operations.
- ERP systems: Sales orders update inventory, trigger fulfillment, and generate invoices automatically.
- Warehouse management systems (WMS): Shipments, picking, and packing are aligned with the order data to keep the warehouse in sync.
- Customer relationship management (CRM): Customer service teams see order confirmations and shipping updates directly in their tools, enabling accurate communication with buyers.
Confirm Receipt and Status
The final step is to close the loop by confirming that the documents were received and processed correctly.
- Functional acknowledgment (EDI 997): A confirmation sent back to the sender indicating whether the document passed or failed validation.
- Additional updates: Depending on the business relationship, status messages such as shipment notices (EDI 856) or payment remittance details (EDI 820) may also be exchanged, giving both parties visibility throughout the transaction lifecycle.
Whether you’re expanding to Amazon, Walmart Marketplace, Target, etc., the eCommerce EDI process simplifies once you have a solution in place to translate EDI formats between marketplaces and your ERP system.
EDI process in eCommerce
Your EDI platform should serve as a bridge between your ERP and eCommerce platform or marketplace. Seamless and automated EDI integration is critical for accelerating business processes such as order processing, shipping updates, inventory synchronization, and more.
Imagine you’re selling on Amazon and using NetSuite ERP on your backend. Here’s how the eCommerce integration process would work. In short, when a consumer clicks “buy,” your EDI system will translate that order into the format suitable for your ERP (e.g., flat file). At this point, your EDI solution recreates the sales order in NetSuite to match what was captured in Amazon. Once the order is processed and ready, inventory levels will be updated in both systems and item fulfillment details will be sent to Amazon.
Without an EDI software to handle incoming and outgoing EDI integrations, there will be a lot of manual order entry into your ERP. These manual processes are overwhelming for brands to manage not just order processing, but also to keep accurate stock levels
1. An EDI Order Generates
When a shopper clicks “buy” on Amazon, a purchase order is generated. Rather than rekeying that order yourself into NetSuite, your EDI software translates the Amazon EDI sales order into your NetSuite system automatically.
- No manual typing or uploading
- Every detail (products, pricing, shipping address) automatically lands directly in your ERP
2. Confirming the EDI Order
Amazon expects a fast acknowledgement. With the right EDI solution in place, you can send a confirmation back automatically with all of the item fulfillment information (quantity, projected shipping details, etc.) following the order approval in NetSuite and processing of payment.
- Some EDI platforms will flag pending or at-risk SLAs—like Amazon’s tight order acknowledgment deadlines, protecting you against penalties.
3. Shipping and Notifications
Once the order is picked, packed, and shipped, your EDI software sends the Advanced Shipping Notice (ASN). Amazon gets all the updated details: what’s in the box, carton contents, estimated delivery date, and tracking numbers, etc..
4. Invoicing and Payment
By accepting the original order, you’ve already been paid by the online customer. But if your business relies on a 3PL or third party to assist in fulfillment, it’s time to pay them. The same EDI platform that integrates Amazon with NetSuite should facilitate on-time payment to external trading partners.
5. Keeping Everything in Sync
Inventory levels, order status, and payment updates all stay aligned between Amazon and NetSuite. That means:
- Less chance of overselling
- Cleaner books with fewer adjustments
- No scrambling to fix compliance issues
With automated EDI integration handling the back-and-forth, your ERP and eCommerce platforms and/or online marketplaces can stay connected in real-time.
Overall, EDI software ensures faster order processing, cleaner data, and fewer manual entry headaches—all while reducing the need for error correction and maintaining good standing with strict marketplace requirements.
Benefits of EDI in eCommerce
Enhanced Efficiency: In ecommerce, EDI automates order flow between marketplaces like Shopify, Amazon, and Walmart. Orders can be fulfilled in hours instead of days.
Data Accuracy: The right EDI software helps reduce costly shipping errors and retail compliance chargebacks through proactive alerts and notifications.
Real-Time Inventory Management: Through ERP integrations, EDI solutions can sync stock between ERP, Shopify storefront, and marketplaces, preventing overselling.
Better Customer Experience: Customers receive automatic order confirmations, tracking updates, and accurate delivery dates.
Seamless Partner Communication: Suppliers, warehouses, and logistics providers stay in sync across the supply chain.
Regulatory Compliance: Meets strict standards (ANSI X12, EDIFACT, HIPAA if in healthcare, GS1 for UPC barcodes).
Scalability: Supports growing transaction volumes and onboarding new trading partners without overloading your team.
Real-World Perspective
A Real Story of eCommerce EDI Enablement
For eCommerce businesses, outdated integration systems can quickly become a roadblock in EDI integration — slowing down partner onboarding, hiding transaction visibility, and making it harder to keep up with customer expectations for fast, accurate fulfillment.
Minnetonka Moccasin, a 75-year-old footwear brand, dealt with these challenges while shifting from bulk retail orders to dropshipping and eCommerce marketplaces. Minnetonka Moccasin modernized its EDI software to enable swift eCommerce EDI integrations, faster trading partner onboarding (in days instead of weeks), better customer service teams through direct eCommerce order troubleshooting, and created a scalable foundation for future growth after switching to Cleo for eCommerce EDI integration.
Choosing the right EDI platform isn’t just about exchanging data — it’s about enabling flexibility, efficiency, and resilience across every part of the eCommerce supply chain. Listen to the full story here.
Six-step approach to eCommerce EDI implementation
Successful EDI implementation is a crucial process for many e-commerce businesses. This isn't just a technical task; it's a strategic move to streamline your operations and strengthen your retail partnerships.
1. Assess Business Needs
First, identify your required documents, while this varies by trading partner, you can expect most EDI mandating trading partners will require:
Next, align on communication protocols, including AS2, FTP, SFTP, or API. Finally, review specific compliance requirements from key trading partners like Amazon, Walmart, and Target.
If you need help understanding your specific eCommerce EDI requirements, we’re happy to have that conversation with no sales pressure.
2. Choose the Right EDI Solution
Your choice of EDI provider depends on your business scale and technical resources.
Direct EDI is most suitable for enterprises with high transaction volumes and dedicated IT staff.
VANs (Value-Added Networks) are best for small to mid-sized brands and provide a managed service that handles translation, routing, and monitoring.
Cloud EDI is the best option for merchants on platforms like Shopify, Magento, and BigCommerce, offering cost-effective and easy integration.
Want to learn more about these EDI options, read more about the right type of EDI for you.
3. Data Mapping & Integration
This phase involves mapping EDI fields to your internal systems, including your ERP, OMS, and WMS. Utilize APIs with EDI or middleware for seamless integration with platforms like Shopify Plus or NetSuite. It is critical to customize rules for each trading partner, as retailers often have unique ASN and labeling requirements.
4. Testing & Validation
Before going live, be sure to conduct rigorous testing. Test each transaction type with your trading partner to ensure data accuracy. The last thing you want is to start out with a mess of EDI order issues and risk penalties.
Perform performance testing to verify that your system can handle peak season spikes. Additionally, validate all EDI error-handling workflows to manage potential issues proactively.
Certain EDI solutions focus more on issue-resolution capabilities than others, so it's important to understand how simple or how “into the weeds” you must get when issues do arise.
5. Training & Support
Make sure there is a well documented support center and learning base for initial and continual training. This will provide comprehensive training for your operations, accounting, and customer service teams.
Make sure every business user understands the path of escalation to address or diagnose EDI errors efficiently.
6. Continuous Optimization
EDI isn’t perfect on its own, it‘s your EDI processes that make or break efficiency.
Regularly review your partner compliance scorecards to maintain high performance. Update your data mapping as EDI trading partner requirements evolve. Stay current with new EDI standards, APIs, and marketplace mandates to ensure your system remains efficient and compliant.
If you want more information about how you can prepare for implementation of a new EDI solution, contact one of our EDI experts here.
What are my options for eCommerce EDI?
Larger order volumes require more time or more hands for all that manual data entry, here are some cost-effective ways to get started with an affordable EDI solution, depending on your needs and budget:
Web EDI (Portal-Based Solutions)
What it is: Instead of a complex, integrated system, Web EDI uses a simple, user-friendly portal accessible through any web browser. Users log in to a secure website to manually input, view, and send/receive EDI documents, making it an excellent entry point for companies new to EDI.
Best for: Small sellers and startups with low EDI volume and a limited number of trading partners. It's ideal for those who need to be EDI-compliant to work with a specific large retailer but lack the technical resources or budget for a full integration.
EDI via Your Ecommerce/ERP Platform
What it is: Many popular applications like Shopify, NetSuite, and QuickBooks have built-in or plug-in EDI connectors. This approach leverages the systems you already use, allowing you to manage EDI transactions directly from your existing e-commerce or ERP interface, which simplifies workflows and reduces the learning curve.
Best for: Businesses of all sizes already using these platforms. It's a highly affordable and efficient solution because it avoids the need for a separate, standalone EDI system and allows you to "plug and play" with an EDI connector tailored to your platform.
EDI VAN (Value Added Network) with Pay-Per-Use Pricing
What it is: A VAN is a secure, private network for exchanging EDI documents. While traditional VANs often have high monthly fees, some providers now offer a pay-per-use model. This structure charges you based on the number of transactions or the volume of data you exchange, providing a more flexible and scalable option.
Best for: Businesses that are starting small with EDI and expect their transaction volume to grow. It allows you to leverage the reliability and security of a VAN without the large, upfront investment or fixed monthly costs, making it a good stepping stone before committing to a larger plan.
EDI through 3PL or Fulfillment Partner
What it is: Many third-party logistics (3PL) providers and fulfillment centers have already established EDI connections with major retailers and trading partners. By leveraging your 3PL, you can outsource your EDI compliance entirely, as they handle the exchange of documents like purchase orders and invoices on your behalf.
Best for: Companies that use a 3PL and want to offload the complexities of EDI compliance. This solution is highly convenient as it eliminates the need for you to set up and maintain your own EDI system, saving significant setup costs, technical effort, and ongoing maintenance.
EDI Integrators / Managed Services
What it is: This is the most comprehensive and hands-off approach. Providers like Cleo offer a full-service, managed solution where a team of experts handles every aspect of your EDI. This includes system setup, maintenance, partner onboarding, and ongoing support, allowing your business to focus on its core operations without needing in-house EDI expertise.
Best for: Enterprises and large businesses with complex supply chains, numerous trading partners, and high transaction volumes. It’s a complete solution that ensures reliability, scalability, and security, and it’s ideal for companies that need a robust, enterprise-grade EDI system without the internal resources to manage it themselves.
Ready for eCommerce expansion?
For eCommerce businesses, EDI integration is the gateway to selling swiftly through major retailers, scaling marketplace presence, and automating back-office operations. Without it, you risk compliance issues, shipment delays, and lost revenue opportunities.
EDI integration is the key to faster order cycles, lower costs, and happier customers.
At Cleo, we eat, sleep and breathe eCommerce EDI integration for thousands of brands from the small business to the large enterprise. Our EDI solutions are designed to expedite the EDI integration process with major eCommerce stores and marketplaces with pre-built integrations.
If you have questions about Cleo’s solutions or want to learn about EDI integration in general, don’t hesitate to ask. One of our EDI experts are ready to discuss your specific eCommerce goals and EDI needs. You can see more resources at our content hub or watch how some of our many EDI solutions are simplifying eCommerce EDI integration.
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