What Is an EDI File?

An Electronic Data Interchange (EDI) file is a structured digital file that lets companies exchange business documents electronically between systems. Instead of re-entering orders, invoices, or shipping notices by hand, businesses can send standardized data that other systems can read and process automatically.
 

EDI files work because every value appears in a defined structure that receiving systems can interpret automatically. Standards set rules for syntax, shared codes, message design, and the way systems identify each value inside the file.

• Syntax defines which characters and separators can be used and in what order.
• Codes provide consistent representations for common data such as currencies, countries, and dates.
• Message designs define how each document type, such as an invoice or purchase order, is organized.
• Identification values help systems recognize data by position or separator logic, depending on the standard in use.

Most EDI standards are built from three basic components: elements, segments, and transaction sets. Together, these components let businesses package complete business documents in a format that machines can exchange and process reliably.

Several EDI standards exist, each serving distinct industries and geographical regions. Here are five of the most common EDI format standards:

1. UN/EDIFACT: The UN/EDIFACT standard (United Nations rules for Electronic Data Interchange for Administration, Commerce, and Transport) is the most widely used EDI format outside North America. It is adopted across various industries, with subsets like EANCOM (used in retail) automating industry-specific data exchanges. EDI document types within EDIFACT are recognized by six-letter codes, such as ORDERS (purchase orders), INVOIC (invoices), and DESADV (dispatch advice). Each message follows a structured sequence of EDI segments: UNA, UNB, UNG, UNH, UNT, UNE, UNZ.
2. TRADACOMS: Despite being less widely used than EDIFACT, the TRADACOMS standard was released several years before the UN standard and is primarily used in UK domestic trade, especially in the retail industry. TRADACOMS consists of 26 message types, each identified by a six-letter reference. A transmission includes multiple messages, such as ORDHDR (Order Header), ORDERS (Individual Orders), and ORDTLR (Order Trailer). EDI segments used include STX, MHD, MTR and END.
3. ANSI ASC X12: ANSI ASC X12 (American National Standards Institute Accredited Standards Committee X12) was developed in 1979 to standardize EDI across North America. Today, it is used by nearly half a million businesses worldwide. X12 EDI files are identified by three-digit codes, such as 810 for invoices. X12 also includes subsets tailored for different industries, such as AIAG (Automotive), CIDX (Chemical), EIDX (Electronics), HIPAA (Healthcare), PIDX (Petroleum), UCS (Uniform Communication), and VICS (Retail). X12 documents consist of mandatory EDI segments such as ISA, GS, ST, SE, GE, and IEA.
4. VDA: The Verband der Deutschen Automobilindustrie (VDA), or Association of the Automotive Industry, developed the VDA EDI standard in 1977. VDA message types are identified by four-digit codes, such as the VDA 4905 message for delivery forecasts. VDA documents use a fixed-length format rather than EDI segments and separators. While still in use, VDA standards are gradually being replaced by EDIFACT in the automotive industry.
5. UBL: Universal Business Language (UBL) is an XML-based EDI standard developed by OASIS (Organization for the Advancement of Structured Information Standards). UBL documents are easier to read compared to traditional EDI formats, though their file sizes are larger due to the XML structure. UBL is compliant with new EU e-invoicing regulations, which is expected to increase its usage. This also introduces the concept of EDI or XML, highlighting the difference in structure and readability.

Understanding these different EDI file types is important for businesses engaging in electronic data exchange.

EDI file structures are designed for computer processing. At the most basic level, data is stored in elements. Groups of elements form segments, and groups of segments form transaction sets or messages.

• Data elements hold individual values and are separated by delimiters.
• Segments group related elements into meaningful records.
• Loops or groups connect related segments that belong together in the transaction.
• Transaction sets or messages organize a complete business document into header, detail, and summary sections.
• Interchanges and control segments identify sender and receiver information and mark the start and end of each control structure.

EDI mapping tools help translate between formats, parse incoming documents into usable data elements, and validate content against the selected standards and rules.

By improving communication, reducing errors, and accelerating workflows, EDI files help turn business-to-business document exchange into a more efficient and reliable process.

An effective EDI integration approach should support the creation, transmission, and processing of different EDI file formats and standards across both external trading partners and internal systems.

• Partner onboarding: New partners should be connected with as little friction as possible.
• Flexibility: The solution should handle multiple EDI file types and evolving partner requirements.
• Internal integration: Data should move consistently between EDI processes and internal business systems.
• Scalability and efficiency: The solution should support reliable, accurate transactions as business needs grow.

SEEBURGER supports businesses that need to exchange B2B documents securely, onboard trading partners faster, and automate transactions across their ecosystems. Its BIS Platform B2B/EDI capabilities are positioned to help companies work with different EDI file types, formatting requirements, and integration flows.

• Support secure exchange of business documents
• Accelerate partner onboarding
• Automate B2B transaction workflows
• Handle different EDI file types, formatting, and translation needs

EDI integration is a vital component for businesses looking to optimize their data exchange processes. By understanding what is an EDI file, its structure and the various EDI file types and formats, businesses can leverage the numerous benefits of EDI – including improved efficiency, reduced costs and better supplier relationships. SEEBURGER offers best-of-breed EDI solutions tailored to the specific needs of businesses across all industries, providing the expertise and platform to streamline your data exchange and ensure seamless B2B communication.