Check the SAP authorization concept
Prevent excessive permissions on HR reporting
In the SU53 you get the entry of the user that is stored there, and this may be old. So it is better to let the user himself display the authorization error via the menu. Maybe you create a small docu for all your users how to display the error and where to send it, so a "Cooking Recipe: How To...". In the SU53 error excerpt, the first thing that is displayed is the authorization that the user is missing. So this object has to be analyzed. In the further part of the error message, the permissions assigned to the user are displayed. This information can be used to classify the user with his role set, where he belongs etc. Finally, in our case 1, we now have the missing authorization and must now clarify whether the user should receive this authorization or not. In addition the specialist department must be contacted, which has to decide whether the user receives the permission! It can happen that the problem reported by the user is not an authorization problem at all. Then the last authorization error is displayed in the SU53 area, which is not the cause of the error at all. Therefore, it is always good to have a screen image of the actual error message sent to you as well. It is not uncommon for developers to issue an authorization error of the type "No authorization for..." from their programs, but they have not checked this with a standard authorization check at all, so that the error is not an actual authorization error.
You should then enable the latest version of the hash algorithms by setting the login/password_downwards_compatibility profile parameter to 0. This is required because SAP systems maintain backward compatibility by default. This means that, depending on your base release, either the new hash algorithms will not be used when storing passwords, or additional outdated hash values of passwords will be stored. You should then check to see if there are any old hash values for passwords in your system and delete them if necessary. Use the report CLEANUP_PASSWORD_HASH_VALUES.
Lack of definition of an internal control system (ICS)
The proposed values in the SU24 transaction are an imperative for the maintenance of PFCG roles, as these values are used when creating PFCG roles. The better these values are maintained, the less effort is required to maintain the PFCG roles (see figure next page). You may ask yourself in which cases it makes sense to adjust the proposed values, since they have such a large impact on the maintenance of roles.
Structural authorizations work with SAP HCM Organizational Management and define who can be seen, but not what can be seen. This is done based on evaluation paths in the org tree. Structural authorizations should therefore only be used together with general authorizations. Just like the general authorizations in SAP ECC HR, they enable regulated access to data in time-dependent structures. An authorization profile is used to determine the authorization. In addition, it is defined how the search is carried out on the org tree.
Authorizations can also be assigned via "Shortcut for SAP systems".
AUTHORITY-CHECK searches the profiles specified in the user master record for authorizations for the authorization object specified in the AUTHORITY-CHECK statement.
Describing all configuration options would exceed the scope of this tip.