Customizing of the notifications according to customer requirements
It is possible to specify a trace level for each rule in the ACL file to monitor each communication channel individually. It can be used with SNC without any further configuration. The use of the file is controlled by the gw/acl_file parameter by simply setting it to the appropriate file name. Use of external programmes If an external programme wants to communicate with your SAP system, it must first register at the gateway. The programmes which this is approved are controlled by the reginfo ACL file. This defines rules that allow or prohibit certain programmes. The syntax of the file allows you to define not only the name of the programme, but also the host on which the programme runs and hosts that can use and exit the programme. The gw/reg_info parameter must be set to use this file. In addition, there is the ACL file secinfo, which allows to configure which users can start an external programme. This defines rules that allow certain usernames from the SAP system to use certain external programmes. In addition, you can also define the hosts on which these programmes will run. For example, it is possible to allow a user to run the programme "BSP" on the host "XYZ", but not on the host "ABC". This file is controlled by the gw/sec_info parameter. Using the gateway as a proxy Since the gateway of your SAP system can also serve as a proxy server, the prxyinfo ACLDatei should also be activated via the gw/prxy_info parameter. Suppose you have 3 SAP systems in your network: SRC, TRG and PRX. If SRC cannot communicate directly with TRG, but both with PRX it would be possible to use the gateway of the PRX system as a proxy server, i.e. to communicate via it. So, in order to prevent this from happening to everyone, this property should be urgently restricted. As with the other ACL files, rules are defined which hosts can communicate with which hosts via the gateway. The syntax of the different ACL files may vary depending on the release level. It is therefore advisable to read them in the appropriate SAP documentation before activating the ACL files. You can also find more support for using ACL files in the SAP Community Wiki.
People tend to forget how important this element of the architecture is. The setup involved often proves to be especially important for companies looking to implement the SAP system for the first time.
SM37C Advanced Job Selection
The application layer is the central component of the SAP R/3 system. This layer is therefore also referred to by SAP as the actual basis system. Within the layer there are application servers and a message server.
In transaction PFUD (see image above), you can perform the user match manually for all roles (or selected roles). You can choose between the matchup types Profile Matchup, Matchup of Indirect Assignments from Composite Roles, and Matchup HR Organizational Management. According to SAP documentation, the matchups differ as follows: Profile Matchup: "The program compares the currently valid user assignments of the selected single roles with the assignments of the associated generated profiles and makes any necessary adjustments to the profile assignments. Matching indirect assignments from composite roles: User assignments to composite roles result in indirect assignments for the single roles contained in the composite role. This match type matches the indirect assignments of the selected single roles to the user assignments of all composite roles that contain the single roles. If the selection set contains composite roles, the comparison takes place for all single roles contained in it. HR Organizational Management comparison: This comparison type updates the indirect assignments of all selected single and composite roles that are linked to elements of HR Organizational Management. The HR adjustment is inactive and cannot be selected if no active plan version exists or if a global deactivation has been made by setting the Customizing switch HR_ORG_ACTIVE = NO in table PRGN_CUST. Furthermore, the option "Perform cleanup" is interesting, which can be selected independently of the three adjustment types and does not refer to the role selection. The Perform Cleanup function can be used to remove residual data that resulted from incomplete deletion of roles and the associated generated profiles.
Tools such as "Shortcut for SAP Systems" complement missing functions in the SAP basis area.
The application layer communicates with both the database layer and the presentation layer.
If safety deficiencies have been discovered, we will give recommendations for action on how to correct them.