Installation of SAP applications
Change and release management
Through a sound expertise in the SAP technology environment, it is recommended to bring the know-how of the SAP basis into the IT strategy and IT roadmap. For this, the responsibility lies primarily with the CIO as the carrier and responsible of the IT strategy and the IT organisation. Likewise, the SAP basis should serve as a sparring partner for individuals and boards (such as enterprise architects) that significantly influence the strategy.
If your system is already above SAP NetWeaver Release 7.0, then you must either import SAP Note 1731549 or a corresponding Support Package. Afterwards, when creating new users, it is no longer possible to assign user names that are only composed of variants of spaces or other invisible special characters. Important: Changes to already existing users with these names or their deletion option are not affected by this! The SAP Note also adds the customizing switch BNAME_RESTRICT, whereupon you can control yourself whether alternative spaces are allowed to appear in certain places in the user name. For this, the following values must be set in the customizing table PRGN_CUST: NO = The alternative spaces are still allowed in the user name. ALL = The character set is reduced to a defined range, excluding certain special characters because they have specific meanings in certain operating systems or databases. This predefined character set is: ABCDEFGHIJKLNMOPQRSTUVWXYZ_0123456789,;-§&()={[]}+#. FME = The letters F, M and E stand for Front, Middle and End. With an 'X' in this three-digit switch value you can now explicitly specify at which position in the user name no wide spaces and control characters may occur. All combinations are possible, e.g.: XME = None of these special characters may occur at the BEGINNING of the user name. XMX = In the user name none of these special characters may occur at the BEGINNING and at the END. FME = One of these special characters may occur at any position in the user name (this corresponds to the default setting, i.e. as if no entry was maintained in PRGN_CUST for the switch). SAP recommends the use of the value ALL.
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Every SAP Basis system must be controlled and managed by an administrator. The person responsible ensures smooth operation of the system. This can be an internal administrator, or can be handed over to external service providers.
This is where all the system's data resides. These are composed of the actual database and the DBMS, the "database management system". In earlier versions, the database here came from different manufacturers. For example, Microsoft SQL or Oracle. Since SAP HANA, a lot has changed for IT in this data layer. This is because the database comes from SAP itself and is automatically monitored by the system. There is more to this database layer than just the working data. Important elements such as the configuration tables and system data for control and application content are also stored here. This is the repository data used by applications.
For administrators, a useful product - "Shortcut for SAP Systems" - is available in the SAP basis area.
SAP HANA has been one of the major topics in the SAP environment for the last few years.
SAP Basis is the foundation of any SAP system. You can find a lot of useful information about it on this page: www.sap-corner.de.
In order to make maintenance and maintenance of the system easy in such a situation, it is useful to set the inheritance principle for SAP permissions.