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Knowledge base · Standards & protocols

What is AS2?

AS2 is a protocol for sending EDI messages securely over the internet. Below you can read how it works and why retailers often require it.

In short

AS2 (Applicability Statement 2) is a protocol for sending EDI messages securely over the internet. Messages are encrypted, signed and confirmed with a receipt (MDN). Many retailers and suppliers exchange their EDI traffic via AS2.

Sending messages securely

AS2 (Applicability Statement 2) governs how two parties exchange EDI messages directly and securely over the internet. The messages are encrypted and digitally signed, so no one can read along or tamper with them on the way.

After receipt, the recipient automatically sends back a signed receipt, the MDN (Message Disposition Notification). With it, the sender knows for certain that the message has arrived and is unchanged.

Where do you encounter AS2?

Many large retailers, suppliers and logistics parties exchange their EDI traffic via AS2, often as a condition for being allowed to supply. We set up the AS2 connection and link the messages to your ERP, so that orders and packing slips flow through automatically.

Related concepts

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EDI integration

Message traffic via AS2, SFTP or OFTP2 with all your trading partners.

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