Item Data Notification Download the current standard Message providing the ability to align item master data in a peer to peer environment. Implementation Guidelines GS1 XML Transport Instruction and Response Implementation Guide GS1 XML Technical User Guide EDIINT AS1 and AS2 Transport Communication Guidelines Previous versions of this standard Version 3.0 (zip, 0.31 MB) About this standard This version: 3.1 Publication date: Jan 2013 View current version Any questions? We can help you get started using GS1 standards. Contact your local office Get involved Standards Maintenance Groups (SMGs) improve existing standards List of working groups