Definition
AS4 (Applicability Statement 4) is an open OASIS standard, built on the ebMS3 framework, for secure and reliable B2B message exchange over HTTP. It specifies built-in support for reliable delivery (receipts and automatic re-send on failure), compression and WS-Security-based encryption - without requiring a dedicated VPN tunnel between the parties. AS4 is the transport protocol the PeppolEuropean network for e-invoicing and e-procurement - uses AS4 as its transport protocol. Norway is among the countries with mandatory e-invoicing via Peppol for the public sector. network requires for e-invoicing and e-procurement, and is also used as an alternative to older SOAPSimple Object Access Protocol - XML-based messaging protocol used in enterprise integrations, including Elhub./EDIFACTElectronic Data Interchange For Administration, Commerce and Transport - UN standard for electronic data exchange.-based message flows where parties want a more modern, standardised transport layer. HANDSALTvimenning’s EDI server for bilateral message exchange: receives, translates, routes and acknowledges messages between companies and marketplaces. supports AS4 alongside EDIELNordic profile of the EDI EDIFACT standard - used for electronic message exchange in the Nordic power market via Elhub., ECPEnergy Communication Platform - EU-standardised interface for secure data exchange between actors in the European power market., Peppol and EDIFACT, so the customer does not have to pick a protocol per trading partner themselves.