AS2
Applicability Statement 2 - a secure, signed HTTP-based protocol for exchanging EDI documents between trading partners.
In practice
AS2 wraps an EDI payload in a cryptographically signed and optionally encrypted envelope, transports it over HTTP/S, and produces an MDN (message disposition notification) as proof of receipt.
Why it matters
Most US retailers and healthcare networks require AS2 for their EDI traffic.
How Sable handles it
Sable runs an AS2 endpoint with full MDN handling and certificate management.
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