SAP Basis How are SAP modules and SAP Basis related?

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How are SAP modules and SAP Basis related?
The application or application layer
If you now want to change the permission data, you will be asked for values for the appropriate organisation levels. First enter a tilde (~) and define the value later in the derived roles. Maintain the permissions you want and then generate the master role. Adding the organisational level to the master role Step 2: Define derived roles Create derived roles Assign the master role After you have created the master role, it is the derived roles that are in the process. To do this, re-enter a suitable role name via the PFCG. In our example, it is called "findepartment_d01". For a better overview, it is usually useful to name and number the derivatives after the master roles. You can also define the roles according to a different scheme. After you have created the role, you must then enter the master role in the Derive from Role field in the Description tab. Confirm the Auto Enquiries. Customise the Organisation Levels Now go to the "Menu" tab. There you can see that the data from the master role was automatically copied. Since the role has not yet been generated, the Permissions tab is currently highlighted in red. Therefore, call "Change Permissions Data". The first call should automatically open a dialogue to maintain the organisational levels, as they are still empty. If this is not the case, or if you would like to adjust the organisational levels again in a later case, you can also access them via the button Ordende (see screenshot). If everything worked well, you can now see that the permissions were also automatically taken from the master role. If you generate the role, the permission tab will also appear green. Congratulations, you have successfully created a derived role! Repeat step 2 with the additional derivatives to adjust the organisation levels accordingly.

In addition to the consultants working in the individual SAP modules, there is a subarea here that is not directly apparent to many and whose activities seem to be quite opaque: SAP Basis. The smooth operation of SAP systems as the heart of many companies is ensured by the work of SAP Basis administrators.
SAP Basis Introduction and R3 Architecture Overview (in English)
SAP Basis is responsible for the smooth operation of programs in the SAP system. It acts like an operating system for R/3 and subsequent releases including S/4HANA. Every operating system provides an environment in which programs can run, such as MS Office on Microsoft Windows. In the same way, the SAP Basis system with the NetWeaver and HANA platforms provides an environment in which SAP programs can run. In this context, the NetWeaver platform itself relies on server operating systems such as Windows and Linux.

As we explained in SAP Basis, your SAP Basis administrator (or team) is directly responsible for keeping your SAP landscape healthy, online, and up-to-date. This includes:

With "Shortcut for SAP Systems" a tool is available that greatly facilitates some tasks in the SAP basis.

The website www.sap-corner.de offers many useful information about SAP basis.

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Further details on the recommendation can be found in the Master's thesis in chapters 7.5 and 9.3.
SAP Corner
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