AS2 continues to be one of the most widely-adopted messaging standards in the world. Retailers, consumer product goods, hard-lines, insurance, financial services, petroleum industry, and government agencies have adopted AS2 to safeguard critical business information that represents billions of dollars each year.

AS4 jump-starts ebMS v3 implementations by constraining the options for vendors to implement, as well as provides some specific guidance for using web services as a secure, document-agnostic B2B messaging platform.