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Step by step on changing ecc source systems without affecting data modeling objects in sap bw
1.
SAP COMMUNITY NETWORK
SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 1 Step by Step on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW Applies to: SAP ECC 6.00 and SAP BW 7.0 releases. For more information, visit the Business Intelligence homepage. Summary This paper gives a detail understanding of the steps to follow for changing ECC source systems on SAP BW environment without impacting the Data modeling objects built in the SAP BW system. Author: Vamsi Sirish Siddabattuni Company: Deloitte Consulting LLP Created on: 28 November 2009 Author Bio Vamsi Sirish Siddabattuni is an SAP Certified Netweaver 2004s BI Solution Consultant and SAP Certified ABAP Workbench consultant. He has more than 6 yrs of experience working on SAP BW projects and has implemented SAP BW systems based on SAP BW 3.0b, 3.5 and 7.0 versions.
2.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 2 Table of Contents Introduction .........................................................................................................................................................3 Scenario ..........................................................................................................................................................3 Step By Step Procedure .....................................................................................................................................4 Step 1:.............................................................................................................................................................4 Step 2 :............................................................................................................................................................6 Step 3:.............................................................................................................................................................6 Step 4:.............................................................................................................................................................9 Step 5:...........................................................................................................................................................10 Step 6:...........................................................................................................................................................12 Step 7:...........................................................................................................................................................14 Related Content................................................................................................................................................15 Disclaimer and Liability Notice..........................................................................................................................16
3.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 3 Introduction In SAP BW Implementation Projects we might encounter certain scenarios where SAP BW systems may need to connect to different ECC Source Systems during the Integration Testing phase of the project without affecting the data modeling objects in the BW environment. This document is a step by step procedure for switching source systems. Scenario The scenario discusses about switching ECC source systems in SAP BW Environment without affecting the data modeling objects in the BW environment. By data modeling objects, we mean transformations, update rules and transfer rules getting inactive or getting deleted. Once the source system is switched, data reload needs to happen to have the initializations and deltas to come from the new source system. Also we have to ensure that the data from old source system( both transactional and master ) needs to be deleted in the BW system before reloading from the data from new source system to ensure consistency in the data from new system.
4.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 4 Step By Step Procedure The environments discussed in the current context are BW system ( BWQ Client 200 ) and ECC systems ( ECQ Client 180 and ECQ Client 170 ). We will discuss the scenario of switching ECC source system ECQ Client 180 to ECQ Client 170 on BWQ Client 200 System. Step 1: In Transaction BDLS on BW system logical names of the source system need to be changed. In the ‘Old Logical System Name’ field, enter the existing source system ‘ECQCLNT180’ and in the ‘New Logical System Name’ field enter the new source system that we want to change to which is ‘ECQCLNT170’. Execute the run for this transaction in background to change the source systems.
5.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 5 The above step would change the source system name in the BW system. We now need to setup the connection for the new source system. You can now see that the Technical Name of the source system got changed from ECQCLNT180 to ECQCLNT170.
6.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 6 Step 2 : In the next step, we need to open the BW system for change access by going to the transaction SCC4. Select the option ‘Changes to Repository and cross-client Customizing allowed’ option for ‘Cross-Client Object Changes’ and click on save button to save the changes. Step 3: In the next step on the BW environment, go to Transaction SE37 and select the function module RSAP_BIW_DISCONNECT and execute.
7.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 7 Provide the following following entries as inputs for the function module. RFC target sys -> Name of the RFC which the old source system used. I_BIW_LOGSYS -> Logical name of the BW Client. ( BWQCLNT200) I_OLTP_LOGSYS -> Logical name of the old ECC Client. ( ECQCLNT180) I_FORCE_DELETE -> X. The following step would delete the entries needed for the source system change in the table RSBASIDOC.
8.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 8 Also we need to execute the same function module in old ECC source system with the same inputs to delete the entries needed for the source system change. In this context we are executing the function module in ECC source system Client 180. Ensure that the table entries for the BW system are deleted in Table RSBASIDOC.
9.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 9 Step 4: In the next step, open the client for changes using transaction SCC4 in the new source system which is ECQ Client 170 using the same procedure described for BW environment above. Change the RFC connections from Client 180 to 170. You can do so in transaction SM59.
10.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 10 Step 5: In the next step, in the BW environment go to RSA1 to restore the connection for ECQCLNT170 system. Enter ALEREMOTE username and password for this procedure.
11.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 11
12.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 12 Step 6: In the next step do the check and use connections. After that replicate the source system objects. This job can be executed in the background if it has to replicate lot of data sources.
13.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 13 Check to see if the partner profiles are active in WE20 transaction if you face any error during the replication Process.
14.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 14 Step 7: In the next step select ‘Yes’ for reactivating all transfer structures and data sources. With this step the source system switch is finished. Close the BW system and new ECC source system for any changes by using the transaction SCC4 as described in the previous steps. Do a final check of the source system by right click on source system and select option ‘Check’ to see if the source system is correctly mapped. After this you can start loading the data from the new source system. But remember to delete all the data from the BW system concerning the old ECC source system otherwise you might see inconsistent data in the new BW system.
15.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 15 Related Content Datawarehouse Management http://help.sap.com/saphelp_nw04s/helpdata/en/e3/e60138fede083de10000009b38f8cf/frameset.htm For more information, visit the Business Intelligence homepage.
16.
Step by Step
on Changing ECC Source Systems without Affecting Data Modeling Objects in SAP BW SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com © 2009 SAP AG 16 Disclaimer and Liability Notice This document may discuss sample coding or other information that does not include SAP official interfaces and therefore is not supported by SAP. Changes made based on this information are not supported and can be overwritten during an upgrade. SAP will not be held liable for any damages caused by using or misusing the information, code or methods suggested in this document, and anyone using these methods does so at his/her own risk. SAP offers no guarantees and assumes no responsibility or liability of any type with respect to the content of this technical article or code sample, including any liability resulting from incompatibility between the content within this document and the materials and services offered by SAP. You agree that you will not hold, or seek to hold, SAP responsible or liable with respect to the content of this document.
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