CRM Server/Middleware
§CRM to OLTP System
-There is a Plug In on the R/3 acting as adapter counterpart
-Scheduled and automatic data transfer through RFC
§CRM to Other Systems (BW, APO etc)
-Transfer through adapters
The SAP R/3 System (one or several SAP R/3 Systems) serves as
•provider for customizing and business data (master data, transaction data)
•Receive business data for further execution (currently primarily with MySAP Financials and mySAP SCM for accounting and logistics execution)
The recent CRM releases can be standalone systems, which means that ECC is no longer mandatory for the execution of CRM-related tasks and we can use other logistic execution systems as well.
The data exchange via the CRM Middleware requires that Plug-Ins are installed on the SAP R/3 System.
Other systems connected to the CRM System may include:
•The SAP Business Information Warehouse (BW) provides data analyses in the form of Solution Workbooks.
•Non-SAP ERP systems may serve as data sources and receivers for the CRM System.
•The SAP Adanced Planner and Optimizer (APO) offers additional functionality such as an availability check of ordered products.
§Has Basis System at its base hence
-It is Scalable
-Is platform independence
-Has full R/3 development environment
§Has standard Middleware capabilities
-Data Queuing and transport
-Replication and realignment
-Data exchange and mapping
§Contains the consolidated Data base
-Logical database in CRM
-Containing data for Mobile Scenario
The CRM Server is scalable since it is based on a SAP Web Application Server. It contains the CRM Server Applications, a part of the CRM Middleware and the Consolidated Database.
The SAP Web Application Server (formerly: SAP Basis System) provides SAP basis technology and the ABAP workbench as a development environment known to many application developers.
The CRM Middleware functionality includes:
Data queuing and transport.
Replication and realignment service, which ensures that Mobile Clients or external systems obtain the data they require.
Data exchange and mapping
The CRM Server disposes of the CRM database which also contains the Consolidated Database (CDB).
The CRM database is the central database for the CRM Server Applications.
The Consolidated Database (CDB) is used for data replication and realignment for the Mobile Clients. It is a logical database in the CRM database.
Data Flow Overview
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The message flow is controlled by flow control in a CRM server. (Flow control would be described in detail in the subsequent sessions).
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The diagram above depicts the various messages that flow between a central CRM server and the other components in a system-landscape.
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BDocs are Business Documents that are set of transaction statements which collectively represent a logical business object. This is the largest data packages that are handled within the CRM server.
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BIW systems talk to the central CRM server with the use of Data extracts (from BIW to CRM via a BI query) or Excel workbooks (from CRM server to BIW server).
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BDoc messages also play a role in data transfer between the CRM Server and the Mobile Clients, however, here the connections are established via Communication Stations.
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All the other non-SAP components can be enabled to talk to the CRM online component (i.e. the CRM Server) either via a flat file transfer (simple text or excel files), or can have any other application enabling the link (like Web methods, EAI tools etc).
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Detailed discussion on Web methods and other EAI tools is out of scope of this training.
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