Application Link Enabling (ALE) is SAP? S exclusive technology that enables data communication between two or more / SAP R 3 systems and / or / SAP R 3 legacy systems. A natural follow-up to the original version, ALE, EDI, & IDoc Technologies for SAP (0761519033), this book includes technical changes from version 4.6 of SAP R / 3. Topics covered in this book will contribute to the functional and technical staff in the new SAP implementation, adding new EDI messages or interfaces to existing implementations, or an upgrade from version 3.x to 4.x.