Electronic Data Interchange (EDI)

Last updated: August 17, 2026

What is Electronic Data Interchange (EDI)?

Electronic Data Interchange (EDI) is the exchange of purchase orders, invoices, shipping notices, and other business documents between computer systems, in a standardized electronic format that both sides can read without manual re-entry.

EDI standards, such as ANSI X12 and EDIFACT, define the structure of each document so any two trading partners' systems can exchange them without manual translation. EDI software typically integrates with a company's ERP system to pull the shipping, inventory, and invoicing data needed to generate these documents, and businesses that exchange data with multiple partners use EDI software to handle the translation, transmission, and tracking automatically.

What are the EDI standards and protocols?

EDI relies on two distinct layers to work across companies: document standards that define how a file is structured, and transmission protocols that define how that file physically moves between trading partners.

• ANSI X12: the primary document standard used across most industries in North America, covering formats for purchase orders, invoices, shipping notices, and more.
• EDIFACT: the international standard developed by the United Nations for cross-border and multi-industry document exchange, used heavily in Europe and Asia.
• GS1: an industry-specific standard that certifies EDI formats tied to retail and supply chain identifiers, such as barcodes and product codes.

A company exchanging documents with partners in different regions or industries often needs its EDI software to support more than one of these standards at once. The EDI types below cover the transmission side of that exchange, the network or connection a document travels over rather than the format it's written in.

What are the types of EDI?

Several types of Electronic Data Interchange exist: direct EDI, Value-Added Network (VAN) EDI, Internet EDI, Applicability Statement 2 (AS2) EDI, and mobile EDI, with the right choice depending on the needs of the business, the industry, and the trading partners involved.

• Direct EDI involves connecting two trading partners without using a third-party network. Direct EDI requires both parties to have the necessary hardware and software to establish a secure connection.
• Value-Added Network (VAN) EDI uses a third-party network provider to facilitate the EDI document exchange between partners. The VAN provider is an intermediary that makes sure data is transmitted securely and reliably.
• Internet EDI uses the internet as a communication medium to exchange EDI documents between trading partners. Internet EDI uses standard internet protocols, such as file transfer protocol (FTP), to securely move data.
• Applicability Statement 2 (AS2) EDI is a popular type of internet-based EDI that uses the AS2 protocol to securely exchange documents over the internet.
• Mobile EDI allows users to access EDI systems and data from mobile devices such as smartphones and tablets. It's useful for businesses with a mobile workforce or those that require real-time access to data.

How does EDI work?

Electronic Data Interchange runs through four linked stages: preparing the document, translating it into a standard format, transmitting it to the trading partner, and letting the receiving system integrate and acknowledge it.

• Preparation: Trading partners agree on the specific documents they're going to exchange and the EDI format they'll use, and establish a communication protocol and security measures for data transmission.
• Translation: The sender creates the electronic document using their internal systems, then translates it into an EDI message using EDI software built to a standard, such as ANSI X12 or EDIFACT, that the receiver's system can read.
• Transmission: The sender transmits the message to the receiver using a secure communication protocol such as AS2 or FTP, either directly or through a value-added network (VAN) that manages routing.
• Integration and acknowledgment: The recipient's EDI software translates the message into a readable format, processes it by updating inventory, generating invoices, or initiating shipments, then sends an acknowledgment back to confirm the message arrived and was understood.

Electronic Data Interchange vs. Application Programming Interface

It's common to confuse Electronic Data Interchange with an Application Programming Interface (API), but the two solve B2B data exchange differently: EDI moves large, standardized document batches on a schedule, while an API exchanges smaller amounts of data instantly, without requiring a shared format between systems.

Many companies run both side by side, using EDI for high-volume order and invoice traffic with established partners and APIs for newer, code-first integrations.

What are the benefits of EDI?

Through automation and B2B integration, EDI offers six essential business advantages: time and cost savings, improved accuracy, fewer errors, stronger traceability, better customer experiences, and a consistent standard that helps smaller trading partners work with larger ones.

• Saves time and money: automating manual, paper-based processes with EDI reduces costs.
• Improves accuracy: businesses can process more documents with high precision and speed, increasing efficiency and productivity.
• Reduces errors: strict standardization means EDI data transfer avoids mistakes by ensuring information is correctly prepared before it enters corporate processes or applications.
• Enhances traceability: because electronic documents integrate with various IT systems, EDI supports data collection, visibility, and analysis, improving traceability and reporting.
• Fosters positive customer experiences: reliable transaction execution and consistent service delivery help EDI automation support stronger client relationships.
• Provides consistent standards: EDI lets large organizations establish shared standards among trading partners, so smaller organizations can integrate with larger, better-resourced partners using the same framework.

What are the challenges of EDI?

EDI comes with four common challenges: costly initial setup, the need for trading partners to agree on standards, integration with existing systems, and the technical expertise required to maintain it.

• Setup cost and time: establishing the hardware, software, and secure connections EDI requires is time-consuming and can carry a high upfront cost, especially for smaller businesses.
• Standards agreement: trading partners must agree on which EDI standard and version to use before exchanging documents, and updates to those standards over time require ongoing coordination.
• System integration: connecting EDI software to existing ERP, accounting, or warehouse systems can be complex, particularly when those systems weren't built with EDI in mind.
• Technical expertise: maintaining mappings, troubleshooting failed transmissions, and onboarding new trading partners typically requires dedicated technical staff.

What is EDI used for?

Electronic Data Interchange is the backbone of most B2B document exchange, used most heavily in retail, healthcare, manufacturing and automotive supply chains, and logistics.

• Retail relies on EDI to process purchase orders, invoices, and shipping notices between large retailers and their suppliers, many of whom are contractually required to support it.
• Healthcare uses EDI to exchange insurance claims, eligibility checks, and remittance information between providers, payers, and clearinghouses under HIPAA-mandated formats.
• Manufacturing and automotive supply chains use EDI to coordinate purchase orders, advance ship notices, and production schedules across large networks of parts suppliers.
• Logistics and transportation use EDI to share shipment tracking, customs documentation, and delivery confirmations between carriers, freight forwarders, and their customers.

What are the best practices for EDI?

Following nine recommended practices keeps an EDI system running smoothly and efficiently, improving supply chain operations while lowering costs and errors: using standardized formats, testing and validating transactions, maintaining accurate data, monitoring transactions, using secure protocols, establishing clear procedures, creating a backup plan, educating staff, and staying updated on EDI standards.

• Use standardized formats for EDI documents to encourage consistency and compatibility between trading partners.
• Test and validate all EDI transactions before going live so everything works correctly.
• Maintain accurate data in internal systems to avoid errors and discrepancies in EDI transactions.
• Monitor and track EDI transactions to make sure they're processed correctly and promptly.
• Use secure communication protocols such as AS2 or FTP to protect sensitive data during transmission.
• Establish clear procedures to reduce the possibility of conflicts and determine explicit protocols for handling EDI exceptions, errors, and disputes.
• Create a backup plan in case the EDI system fails, or communication issues arise.
• Educate staff members involved in EDI transactions on system usage and recommended practices.
• Stay updated to keep the system compatible with trading partners, and continuously learn the most recent EDI standards and technologies.

Frequently asked questions about Electronic Data Interchange

Here are the most commonly asked questions about Electronic Data Interchange.

Q1. How does EDI data transmission work between trading partners?

Trading partners transmit EDI documents over a secure channel: a direct point-to-point connection, a value-added network (VAN) that routes files between multiple partners, or an internet-based protocol such as AS2 or SFTP that encrypts the file in transit. Which method a company uses depends on its trading partners' requirements and how many partners it exchanges documents with.

Q2. Electronic Data Interchange vs. XML: what are the differences?

EDI and XML both structure data for exchange, but EDI documents are compact and defined by strict, position-based standards like ANSI X12, while XML uses descriptive tags that make files larger but easier for a person to read and customize. Many businesses convert between the two, translating EDI's rigid format into XML when a trading partner's system is built to consume tagged data instead.

Q3. What is EDI used for in healthcare?

Healthcare organizations use EDI to exchange insurance claims, eligibility checks, claim status updates, and remittance information between providers, payers, and clearinghouses under HIPAA-mandated formats. X12 published an updated 008060 version of these formats in 2025, but as of this writing the older 005010 version remains the one providers are actually required to use, since formal HIPAA adoption of 008060 is still pending.

Explore Supply Chain Management software on G2 to see how EDI fits into broader supply chain automation.