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Logical system

Hi friends,

Could anyone please explain me , why do we need a Logical sysytem in ALE technology, And how it is used in INBOUND and OUTBOUND Process?

Please help me to understand this concept.

Thanks in Advance



Former Member

hi Tina,

Defining Logical Systems


You use this function to decide to which other clients (in your system and in external systems) you want to have an RFC connection for the Postprocessing Office.

You only need to run this function if you want to use the Postprocessing Office across all clients or systems. Each client that you want to connect is identified by a logical system. For more information, see General System Maintenance.


You have set up the logical systems for which you require RFC connections. For more information on setting up logical systems, see the SAP Customizing Implementation Guide (IMG) under SAP NetWeaver ® SAP Web Application Server ® IDoc Interface/Application Link Enabling (ALE) ® Basic Settings in the section Set up Logical Systems as well as in the SAP Library under IDoc Interface/ALE.


Specify each logical system for all systems and relevant clients that you want to connect.


You are using the software components Account Management (FS-AM) and Loans Management (FS-CML) in two different logical KBICLNT500 and AENCLNT000. Both software components use the software component SAP Business Partner for Financial Services (FS-BP). This means that both systems may contain postprocessing orders for the business partner object type. To be able to display and edit the postprocessing orders for the business partner object type from Account Management also, define the logical system AENCLNT000.

This example applies only if the business partner master is synchronized in the different systems.

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Message was edited by: Santosh

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