AL08 System-wide list of user sessions
The application layer is the core of an R/3 SAP Basis system. This layer communicates in both directions, to the presentation layer and to the database layer. The application programs on the application servers request the required data from the database layer, process it, prepare it for the user and pass it on to the presentation layer. Data that the user enters in the SAP GUI is passed on to the database via the application servers.
User name without restrictions - critical? Depending on the release of the SAP_BASIS component in your system, invisible special characters may end up in the user name. This is especially critical if only spaces or alternate spaces are used for the user name when creating a new user. In Unicode systems, "alternative" spaces, so-called "wide spaces", can be used in addition to the normal space character (hexadecimal value 20). For example, the key combination "ALT+0160" can be used to insert non-breaking spaces. If a user is now created whose user name consists exclusively of such alternative spaces, this can be confusing. This is because entries for this user ID do appear in change documents, but the impression is created that the entry was created by a non-existent / deleted user. This circumstance can lead to confusion. In addition, certain special characters in the user name can also lead to errors, for example in the Change and Transport System (CTS). This is because the user name is also used in the CTS-ORG to create a file with the same name in the transport directory. Furthermore, there are letters/characters that look identical in different alphabets, but have a different hexadecimal value in the character set. This means that confusion in user names cannot be completely ruled out. Seemingly identical user names then stand for different users.
Cloud services SAP (SCC, SCI, HCI)
If we look at the question of standardisation, this concerns not only the administrative side of IT products, but also the standardisation and simplification of IT products offered by the SAP basis. For this purpose, tools such as ITIL for standardised tasks and the development of IT product and IT service catalogues have already established themselves to the greatest extent possible. These clearly describe the IT services provided. In addition to the definition of the service to be provided, the clear description shall include the identification of disclaimers and conditions that must exist. Also part of the service description is a price that can be composed of fixed and variable parts. This simplification and bundling of the product portfolios should also reduce the administrative burden when ordering, activating, changing, terminating and, of course, invoicing. The description of the IT services and the associated development of an IT product catalogue is the basis for standardisation, whether the recipient is an external or internal customer (e.g. a business unit). One difficulty is the definition of IT products, i.e. the pooling of IT services and resources. An orientation towards the idea of cloud computing can help. The characteristics of cloud computing are the provision of standardised services in terms of performance and type of performance, results-orientated services, provision of performance to a wide range of service customers, scalability, transaction-based billing and high risk of IT service failure.
This advanced SAP administration training course provides confidence in in-depth administration tasks on your SAP system. For example, SAP administration with WebAS with ABAP and Java, system configuration and system updates, importing patches and corrections, and updating users and authorizations. Furthermore, the program includes the setup of printers, knowledge of system security and system monitoring as well as transport functions. Not to forget the help system and data backup in your SAP systems.
Some missing SAP basic functions in the standard are supplied by the PC application "Shortcut for SAP Systems".
The scope of the check of system settings and system security includes not only the SAP Basis settings presented here, but also other SAP Basis settings.
For an active logging it is necessary to set the flag "Log data changes".