
Applicability Standard 2 (AS2) is a follow-up to Applicability Statement 1 (AS1), which was developed in the 1990's by the Internet Engineering Task Force (IETF) to control how EDI utilized the Simple Mail Transfer Protocol (SMTP) and Secure/Multipurpose Internet Mail Extensions (SMIME). AS2 also uses SMIME for security encryption, but overall AS2 is different (and better) than AS1.AS2 uses a client/server system that requires both trading partners in an EDI transaction to be online at the same time. Another basic requirement for AS2 is the use of a network with the TCP/IP protocol.AS2 envelopes data using SMIME digital certificates to encrypt data and verify identities. This ensures that both trading partners can confirm that they are communicating with the right party.
Here is an example of the process of sending an invoice with AS2:
Now that you understand how AS2 works, let's take a look at why your business might want to use it for your B2B communications.
An EDI value-added network (VAN) is an alternative to AS2 for EDI communication. However, more recently companies are using AS2 via an EDI VAN to combine the benefits of both technologies.Typically, AS2 uses the internet for communication, allowing companies to get data use from their AS2 software. On the other hand, using an EDI VAN usually requires a business to pay for the amount of data they use.Thanks to BOLD VAN's Trading Partner Pricing, you can get EDI data use regardless of whether you use AS2 or our VAN for EDI exchange!
Best of all – we install and configure everything for you.
There are a few different approaches to getting started with AS2. Traditionally, you and your trading partners would need to complete the following three steps:
You can handle the setup and onboarding processes in-house, or you can hire a consultant to help your organization get everything squared away.On the other hand, you can outsource everything to a full-service EDI provider like BOLD VAN. All of our white-glove services are included in your monthly rate, regardless of which pricing tier your business uses.We will configure AS2, an EDI VAN, and any other EDI services you need to exchange documents with your trading partners. No matter which methods you use for EDI exchange, your communication will always be fast, secure, and reliable.Learn more about outsourcing your EDI to BOLD VAN today!

This blog breaks down the essentials of EDI VAN security, focusing on robust encryption (in-transit and at-rest), AS2 messaging for direct, predictable cost transactions, and comprehensive audit trails for compliance and real-world risk management. It also emphasizes strong authentication, flexible protocol support, and transparent pricing to streamline migration and safeguard supply chain operations without surprise fees.

An EDI VAN serves as a secure digital hub, handling document exchange through centralized mailboxes and flexible protocols to streamline integration and reduce hidden fees. Discover actionable strategies for cost control and efficient migrations, empowering businesses to maintain compliance and drive smoother, transparent supply chain operations.

This blog explains how an EDI VAN can streamline operations, cut hidden costs, and reduce risks associated with outdated, opaque contracts. It provides CFOs and IT leaders with practical guidance and real-world case studies to help transition to modern, predictable pricing models while ensuring compliance and efficient partner onboarding.