2019-04-16 184971 184971 - Notes on BW source system connections Version Language Priority Release Status Component 4 English Correction with medium priority Released for Customer BW-WHM-DST-SRC ( Source Systems ) Type Master Language Category Released On SAP Note German Consulting 15.08.2000 Please find the original document at https://launchpad.support.sap.com/#/notes/ 184971 Symptom This is a collective note which groups all relevant information on BW source systems and provides some general information in this context. Other Terms BW, source systems, OLTP, database copy, client copy, system infrastructure, transport, connection, RFC connection, Trfc, transfer structure, IDoc, ALE Customizing, logical system name, system changeability, renaming in systems, system copy Reason and Prerequisites A Data Warehouse is by nature connected with other system to a high degree.On the one hand it is connected to many source systems and on the other hand it is sometimes used as a source system itself for additional Data Warehouses, so called DataMarts These facts have the consequence that changes to one system in a group can hardly ever be considered separately because all connected systems are affected. Examples for such critical changes are: • the system changeability (see Note 184586) • the logical system name • copying systems (see Notes 325525). Solution A BW source system connection consists of a number of single connections and settings which are made on both participating systems. • The RFC connections • The ALE- settings, these in turn consist of: • the partner declarations • the port • the IDoc types • the IDoc segments • The BW settings © 2019 SAP SE or an SAP affiliate company. All rights reserved 1 of 3 2019-04-16 184971 Due to this vast number of settings it is hardly possible to manually create or repair a BW source system connection correctly. The logical system name It is of particular importance together with ALE settings (and therefore with BW source system connections): The logical system name is used as a unique name of a system in a system group.Therefore, two systems may never have the same name as long as they are connected to each other directly or indirectly as BW or source systems.For this reason it is useful to assign identical names to test and production system.This simplifies copy procedures from production to test systems considerably (see Note 184447).Changes of the logical system name are only allowed if the system is not connected to other systems, since the name change has the effect that the connections to all other systems no longer function. Software Components Software Component Release SAP_APPL 45A - 45A SAP_APPL 46A - 46A SAP_BW 12B - 12B SAP_BW 20A - 20B This document refers to SAP Note/KBA Title 325525 Copying and renaming systems in a BW environment 184447 Building a BW-system landscape 1478123 FAQ: Source system This document is referenced by SAP Note/KBA Title 1478123 FAQ: Source system 184447 Building a BW-system landscape © 2019 SAP SE or an SAP affiliate company. All rights reserved 2 of 3 2019-04-16 325525 184971 Copying and renaming systems in a BW environment © 2019 SAP SE or an SAP affiliate company. All rights reserved 3 of 3
