Interfacing SAP and legacy systems using IBM Connector
I am trying to interface SAP with a legacy system using IBM Connector and ALE/IDoc interfaces. My requirement is to create PO/PR/GR/LIV docs in SAP R/3 and return the Document number back to the legacy system. I am using ALEAUD message type to return IDoc number and status back to sender (legacy system.) How do I send SAP Document numbers of the newly created SAP documents back to the sender system? Since ALE is async communication, how do I handle this?
When the transaction support NAST messaging, customize a new output message for ALE that is created with the document. This poutput message the sends out ALEAUD etc. (in case of PO, better send the ORDERS03 as aorder acknowledgement.)
A detailed explaination of how this can be accomplished is part the following IBM Redbook:
Lee Gavin, Axel Angeli
A B2B Solution using WebSphere Business Integration V4.1 and WebSphere Business Connection V1.1
This was first published in November 2003