MARCO CONTEXTUAL

Exercise Objectives

After completing this exercise, you will be able to:

• Review the technical settings of the RFC connection between the SAP R/3 System and an SAP SCM System.

Business Example

As your company implements SAP SCM , the integration needs to be set up between the two systems. This integration uses an RFC connection and these settings must be maintained to set up the integration.

Task:

The link between an SAP R/3 System and the SAP SCM System is based on an RFC connection that connects two logical systems.

1. Which SAP R/3 client are you working in?

2. Which logical system name is assigned to your SAP R/3 client? Look in your SAP R/3 system

3. Which SAP SCM client are you working in?

4. Which logical system is assigned to your SAP SCM client?

5. In the SAP R/3 System, display the RFC connection to the SAP SCM System. Which user name is used for logon to the SAP SCM System?

6. In the SAP SCM System, display the RFC connection to the SAP R/3 System. Which user name is used for logon to the SAP R/3 System?

SCM210 Lesson: Technical integration of SAP R/3 and SAP SCM

Solution 1: Architecture of Integration

Task:

The link between an SAP R/3 System and the SAP SCM System is based on an RFC connection that connects two logical systems.

1. Which SAP R/3 client are you working in?

Answer: Varies, for example, 8##

2. Which logical system name is assigned to your SAP R/3 client? Look in your SAP R/3 system

Answer: Varies, but should use the format T90CLNT090. Use the

following menu paths to check the system name assigned: Tools→ Customizing→IMG→Edit Project , Choose SAP Reference IMG, then Integration with Other mySAP.com Components→Advanced Planning and Optimization→Basic Settings for Setting up the System Landscape→Assign Logical System to a Client.

3. Which SAP SCM client are you working in?

Answer: Varies, should be the same as the SAP R/3 client, for example,

8##.

4. Which logical system is assigned to your SAP SCM client?

Answer: Varies, but should use the format APOCLNT8##. Use the

following menu paths to check the system name assigned: Tools→ Customizing→IMG→Edit Project , choose SAP Reference IMG, and then SAP Web Application Server→Application Link Enabling (ALE)→Sending and Receiving Systems→Logical Systems→Assign Client to Logical System. 5. In the SAP R/3 System, display the RFC connection to the SAP SCM

System. Which user name is used for logon to the SAP SCM System?

Answer: USERADMIN.

Use the following menu paths to check the user name: Tools→

Administration→Administration→Network→RFC Destinations (SAP R/3 Connections), and then Locate the logical system name of the SAP R/3 System and double click to display the details..

6. In the SAP SCM System, display the RFC connection to the SAP R/3 System. Which user name is used for logon to the SAP R/3 System?

Answer: USERADMIN.

Use the following menu paths to check the user name:Tools→Customizing →IMG→Edit Project , Choose SAP Reference IMG, then Integration with Other mySAP.com Components→Advanced Planning and Optimization→ Basic Settings for Setting up the System Landscape→Set Up RFC Destination, and then Locate the logical system name of the SAP R/3 System and double click to display the details..

SCM210 Lesson: Technical integration of SAP R/3 and SAP SCM

Lesson Summary

You should now be able to:

• Explain the basic steps to integrate an SAP R/3 and an SAP SCM System • Demonstrate the need or use of RFC connections between SAP R/3 and

SAP SCM systems

• Explain the use of Inbound and Outbound queues when integrating SAP R/3 and SAP SCM.

• Explain the purpose of Business system groups in integration SAP SCM with one or more OLTP systems.

Lesson: Generating and Activating Integration Models

Lesson Overview

After the RFC connection is set up between the SAP R/3 System and the SAP SCM System, an integration model controls the data objects that integrate.

Lesson Objectives

After completing this lesson, you will be able to:

• Create integration models for transfer of transactional data using SAP recommended selection methods.

• Activate integration models for transfer of transactional data.

Business Example

Planning elements must be transferred from the SAP R/3 system to the SAP SCM system to derive a proper production plan. Upon completing a production plan, the results must be transferred back to the SAP R/3 system to perform additional planning via MRP, or actual manufacturing or procurement activities. Now that you have reviewed the necessary configuration to start the integration of transactional data between and SAP SCM system and an SAP R/3 system, you need to trigger the actual transfer of that data. In order to accomplish the bi-directional flow of transactional data you will setup and activate an integration model for the necessary objects.

Integration Models: Creating and Activating

The data transfer between the SAP R/3 and SAP SCM systems is defined and controlled using the Core Interface (CIF). The CIF is the central interface for connecting SAP SCM to the existing SAP R/3 system environment. An RFC connection with the SAP R/3 System is a technical requirement for successful data transfer to SAP SCM using the Core Interface. The CIF interface is an add-on to the SAP R/3 System that you install using the relevant plug-in. The exact installation process is dependent, amongst other things, on the SAP R/3 release you are working with. You can find current detailed information on plug-ins in SAPNet, under the alias /R3-plug-in. The selection of master data that the system transfers to SAP SCM is determined in an integration model that you define in the SAP R/3 System.

SCM210 Lesson: Generating and Activating Integration Models

Figure 16: Master Data Interface: Core Interface (CIF)

The Core Interface is a real-time interface. Only the data objects needed in the data structures reconciled in planning in SAP SCM for the particular planning and optimization processes are transferred from the complex data set in SAP R/3 to SAP SCM. Both the initial data transfer (initial transfer) and the transfer of data changes to SAP SCM are made through the Core Interface. The master data objects in SAP SCM are not identical to those in SAP R/3. During master data transfer, the relevant SAP R/3 master data is usually mapped onto corresponding SAP SCM planning master data. The SAP R/3 system is always the dominant system for master data. Only specific SAP SCM master data that does not exist in SAP R/3 is maintained directly in SAP SCM .

Figure 17: Master Data Objects of the CIF

You define the integration model that controls the transfer of master and transaction data in the SAP R/3 System. You can find the menu option Core Interface Advanced Planner and Optimizer (the CIF menu) under Logistics→ Central Functions→Supply Chain Planning Interface. The integration model distinguishes between each data object. SAP recommends that you organize your integration models according to the list published in the CIF: Tips and Tricks document. In the integration model, you select the data set that you want to transfer. You specify the following in the integration model. The SAP SCM target system for the data transfer - The data objects you want to transfer. You can delete integration models that you no longer need. Note that you must first deactivate these integration models.

SCM210 Lesson: Generating and Activating Integration Models

Figure 18: Initial Data Transfer of Master Data: Overview

The master data that the system will transfer for the first time (initial

transfer), from the SAP R/3 System into the SAP SCM System, is defined in an integration model. This integration model is generated in the SAP R/3 System using transaction CFM1. An integration model is uniquely defined by its name and application. It is useful to create several integration models with the same name but as different applications. This will help ensure that the data pools of your integration models are generally not too big. This enables you to handle errors more easily. The target system that you specify in the integration model determines the SAP SCM System that the master data is transferred into. The target system is a logical ( SAP SCM) system that must have an RFC connection. Finally, you use a particular integration model to specify which master data you want the system to transfer. To do so, you first specify the master data types that flow into the integration model. In the second step, you specify the selection criteria to be used for the selection of the individual master data documents in the SAP R/3 System. You complete the generation of the integration model by "executing" the model (this means that the data objects of the model are compiled) and then you save it.

Figure 19: Generate Integration Model for Initial Data Transfer Figure 19: Generate Integration Model for Initial Data Transfer

To transfer data into SAP SCM, you must activate an integration model that has previously been generated. You activate an integration model with the Activate Integration Model transaction (transaction code CFM2) in the CIF. It is useful to have several integration models active at a time. Choose the Start function to trigger the initial data transfer into SAP SCM: The master data, or the equivalent of the SAP SCM master data in SAP SCM, exists in the SAP SCM System. Basically, only the master data that was not available in any other active integration model is transferred (delta comparison). To be able to carry out the delta matching that was executed during activation of an integration model quickly, the system refers to the runtime version of the integration models. The runtime version is formed in the background from all active integration models, each with one object type and target system, formatted optimally and saved to the database. It is automatically updated during the activation of new models. You can access the runtime version manually from report RCIFIMAX. The initial data transfer usually runs in a particular order: the objects are selected successively, transferred to SAP SCM and processed there in this sequence. For improved system performance, it is also possible to execute a parallel initial data transfer: several integration models can be activated at the same time. You can set during parallel

SCM210 Lesson: Generating and Activating Integration Models

processing whether to run the selection in SAP R/3, processing in SAP SCM or both at the same time. Parallel processing takes place within an object type, whereas the different object types are still transferred in sequence.

Figure 20: Selection Criteria for MRP Type X0

Planning is not necessarily executed for all materials in SAP SCM. Planning for critical materials can take place in SAP SCM, while less critical materials (such as consumption-controlled purchasing materials) are planned exclusively in SAP R/3. Materials planned in SAP SCM should not be planned again in SAP R/3 - the planning result from SAP SCM is transferred directly in the form of planned or production orders to SAP R/3. However, for materials with a BOM, You should assign these materials a special MRP type with the MRP procedure "X" ("without MRP, with BOM explosion"). This will ensure that dependent requirements will be created in the SAP R/3 system for non-SAP SCM-relevant components. (This MRP procedure is available as of 4.0; if you work with earlier releases, use MRP type "P4" with a planning time fence of 999 days). It is also possible to use the MRP type X0 to select materials relevant for SAP SCM in the integration model. If you give materials that are to be planned in SAP SCM a special plant-specific material status, you can use the material status to limit the selection further. In general, you should be careful about separating SAP SCM-relevant materials from those that are not SAP SCM-relevant: For effective planning in SAP SCM, you must be sure that all materials important for the planning process are actually planned

in SAP SCM. (Take capacity planning as an example: If the capacities are to be planned for the different resources in SAP SCM, all materials that are produced on these resources must be planned in SAP SCM.)

SCM210 Lesson: Generating and Activating Integration Models