An ALE Message Handler acts as a bridge between SAP R/3 and another application or multiple other applications. It receives intermediate documents (IDocs) from one or more instances of SAP R/3 and carries them to application(s) for processing. Likewise, it sends IDocs received from applications to one or more SAP R/3 instances.
In contrast to an ALE converter, the message handler will not do any conversion or mapping but instead deliver IDocs without changing them. It is assumed that a message handler has some sort of queuing mechanism and guarantees reliable delivery.
The following SAP CSP members have certified products handling messaging:
- BEA Systems [BEA eLink for R/3]
- Compaq Computer [Compaq BusinessBus]
- Hitachi [Message Queue -Access]
- IBM (UK) [MQSeries for R/3]
- Kaba Benzing [B-COMM for R/3 ERP]
- NEON New Era of Networks [NEONadapter]
- TIBCO Software [TIB/AcitveEnterprise]
- TSI International [Mercator]
- Viewlocity [AMTrix System]
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