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author's profile photo Former Member
Former Member

ALE or XI

Hi

I have scenario in that we have two sap system one System A (ECC 6.0) and System B (ECC older than 6.0]. in current setup both system are in same landscape and interacting through IDoc (ALE settings). We are replacing System A with new SAP system (again ECC 6.0) say System C, but this new system will not be in same landscape. System A and System B have same enterprise structure but system C belong to different enterprise and require to integrate with system B.

Q1. Can we do communication through ALE setup?

Q2. Should we use SAP XI in between for communication?

Q3. which one is best practice?

Pros and Cons in both the cases?

Edited by: tapan singh on Oct 22, 2010 3:37 PM

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    author's profile photo Former Member
    Former Member
    Posted on Oct 22, 2010 at 01:52 PM

    If you have two systems which are in two different landscapes and you want to integrate both the systems, you require a middleware tool like PI/XI.

    Regards,

    TK

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    • Former Member Former Member

      Hi Tapan,

      XI brings with itself something called as centralized integration platform. In other words it avoids hard coded settings. In case of ALE both sender and the receiver should be able to identify each other in order to integrate. But using XI sender and the receiver need not identify each other as it becomes XIu2019s role to do that and whatever changes are to be done, it can be done in XI and both sender and the receiver need not be disturbed. That means there are separate mappings for each sender-receiver pair but all of them are centralized at one place. In this way, XI is more flexible as compared to ALE. Of course in a scenario where only two systems (one of them is SAP) are involved then in that case customers can choose ALE as there is only single point-to-point integration.If one doesnu2019t have to implement a business logic in the middleware and simply pass an IDOC in that case only ALE can be used you need not couple it with XI.

      Regds,

      Pinangshuk.

  • Posted on Oct 22, 2010 at 03:15 PM

    > Q1. Can we do communication through ALE setup?

    Yes

    > Q2. Should we use SAP XI in between for communication?

    You can do this, but for IDoc exchange this is not necessary.

    > Q3. which one is best practice?

    Use PI, when you have an installation already. Otherwise use point-to-point with ALE

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