SAP Authorizations - A Common Perspective of Developers and Consultants
Advantages of authorization tools
Create a message to be displayed to the user when permissions checks fail. The tests in this User-Exit are relatively free. This allows you to read table entries, store data from the ABAP application's memory, or read data that is already there. However, you are limited by the interface parameters of the application. In our example, these are the BKPF and BSEG structures and the system variables. If the information from the interface parameters is not sufficient for the test, you can use your programming skills and knowledge about the interdependencies of substitution and validation in finance to find additional data. The following coding allows you to identify the selected offset document entries that you can find in the POSTAB table (with the RFOPS structure) in the SAPMF05A programme. This way you can find many additional data. It is important that the supporting programme processes the User-Exits.
In the SAP system, passwords are locked when the maximum number of allowed password login errors is reached. This counter is reset with a password each time you successfully log in. In addition, an initial password can be locked when its validity has expired. Both the validity of the initial password and the maximum value for password login errors are set using profile parameters. For details, see Tip 4, "Set password parameters and valid passwords characters". A password lock only prevents a user from logging in via his password, because the number of errors is only evaluated if the login is done by password. If a login is now made via other authentication methods (such as SSO), these are not affected by the password lock. This also applies to internal expiration procedures (such as background jobs) because you do not need to register a password. This prevents, for example, denial-of-service attacks, which first cause a password to be locked in order to block internal processes. Eine Ausnahme von dieser Regel gibt es allerdings: Auch wenn andere Authentifizierungsverfahren genutzt werden, prüft das System, ob der Benutzer dazu in der Lage ist, sich mit einem Passwort anzumelden. Wenn dies der Fall ist und das Passwort gerade geändert werden muss, wird diese Änderung vom Benutzer abgefragt. Diese Abfrage können Sie aber auch mithilfe des Profilparameters login/password_change_for_SSO ausschalten.
Which challenges cannot be solved with authorization tools alone?
You would like to revise your authorisation concept and tailor SAP roles only to the productive processes. We show you how to use the statistical usage data from the Workload Monitor for the SAP role definition. One of the biggest effort drivers in redesigning SAP role concepts is the definition of transactional expression of SAP roles. By using the statistical usage data from the workload monitor, you can avoid costly coordination with process managers in the sense of a Green Field Approach. In this way, you can tailor your SAP role concepts to the content of the usage behaviour. The only requirement is that the data be available for a representative period. This is two months in the SAP standard; You can also extend this time period. Below we describe how you can use the statistical usage data from the Workload Monitor for the SAP role definition.
With more than 28 users, the simple Copy & Paste in the user selection no longer works. However, this does not mean that you have to care for all users individually! It is common for you to make mass changes to users in the SAP system, such as changing role assignments, locking a group of users, or having to adjust their validity dates. Unfortunately, there is no button in the start image of the transaction SU10 that allows users to be pasted from the clipboard. While Copy & Paste allows you to insert users from the clipboard, this feature is limited to the visible area. Therefore, it is not possible to add a list of more than 28 users, which can be very difficult for long lists.
Secure your go-live additionally with "Shortcut for SAP systems". You can assign necessary SAP authorizations quickly and easily directly in the system.
Only adding an authorization object via SU24 does not automatically result in a check within the transaction.
The IF_IDENTITY interface of the CL_IDENTITY class provides various methods for maintaining the fields of the user master record.